MARCH 2023

Characteristics
and Risksof Standardized
Options

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Contents
Chapter I — Introduction........................................................................................................... 3
Chapter II— Options Nomenclature........................................................................................ 6
Chapter III— Options on Equity Securities.......................................................................... 18
Features of Stock Options..........................................................................................................................18

Chapter IV— Index Options.................................................................................................... 24
About Indexes..............................................................................................................................................24
Stock Indexes...............................................................................................................................................24
Dividend Indexes.........................................................................................................................................26
Variability Indexes.......................................................................................................................................26
Strategy-Based Indexes..............................................................................................................................28
Relative Performance Indexes...................................................................................................................29
Foreign Currency Indexes...........................................................................................................................30
Information Concerning Underlying Indexes...........................................................................................31
Features of Index Options..........................................................................................................................32
Adjustment of Index Options....................................................................................................................33

Chapter V—Debt Options and Credit Default Options....................................................... 35
Rates, Yields and Prices of Debt Securities..............................................................................................35
Treasury Securities......................................................................................................................................36
Yield-Based Options...................................................................................................................................37
Options on Conventional Index-Linked Securities..................................................................................38
Credit Default Options and Credit Default Basket Options.................................................................. 40
Adjustment of Credit Default Options.....................................................................................................41

Chapter VI—Foreign Currency Options................................................................................ 44
Market for Foreign Currencies.................................................................................................................. 44
Special Characteristics of Foreign Currency Options..............................................................................45
Special Features of Dollar-Denominated Foreign Currency Options....................................................45
Non-Rate-Modified Cash-Settled Foreign Currency Options............................................................... 46
Cross-Rate Foreign Currency Options......................................................................................................47
Special Features of Cross-Rate Options................................................................................................... 48
Cash-Settled Foreign Currency Options...................................................................................................49
Rate-Modified Cash-Settled Foreign Currency Options.........................................................................50

Chapter VII — Flexibly Structured Options.......................................................................... 52
Special Features of Flexibly Structured Options......................................................................................52

Chapter VIII — Exercise and Settlement............................................................................... 55
How to Exercise...........................................................................................................................................55
Assignment..................................................................................................................................................56
Settlement...................................................................................................................................................56

Chapter IX — Tax Considerations, Transaction Costs and Margin Requirements............58
Tax Considerations......................................................................................................................................58
Transaction Costs........................................................................................................................................58
Margin Requirements.................................................................................................................................58

Chapter X — Principal Risks of Options Positions............................................................... 60
Risks of Option Holders..............................................................................................................................61
Risks of Option Writers..............................................................................................................................63
Other Risks...................................................................................................................................................67
Special Risks of Index Options...................................................................................................................70
Special Risks of Debt Options....................................................................................................................77
Special Risks of Foreign Currency Options...............................................................................................80
Special Risks of Flexibly Structured Options............................................................................................82
Special Risks of Credit Default Options....................................................................................................83
Special Risks of Binary Options (Other Than Credit Default Options)..................................................85
Special Risks of Range Options..................................................................................................................86

Chapter XI — Scope and Limitations of This Document.................................................... 87
Notice of Current Amendment (March 2023)...................................................................... 90
Archive of ODD Changes........................................................................................................ 93

CHAPTER I

Introduction
This document relates solely to options issued by The Options Clearing Corporation (OCC), and allreferences to “options” in this document are applicable only to such options. As of the date of thisdocument, options are traded on the United States markets listed prior to the Table of Contents. In
the future, options may be traded on other markets within or outside the United States. The markets
on which options are traded at any given time are referred to in this document as the “options
markets.” Options described in this document are those approved for trading on the options markets
but may not be actively trading at any given time.
OCC is a registered clearing agency, and each U.S. options market is a national securities exchangethat is subject to regulation by the Securities and Exchange Commission (SEC) under the Securities
Exchange Act of 1934.
What is an option? An option is the right to buy or sell a specified amount or value of a particularunderlying interest at a fixed exercise price by exercising the option before its specified expiration
date. An option that gives the right to buy is a call option, and an option that gives a right to sell isa put option. Calls and puts are distinct types of options, and buying or selling of one type does not
involve the other. Certain special kinds of options may give a right to receive a cash payment if certain
criteria are met.
EXAMPLE: An option to buy 100 shares of common stock of the XYZ Corporation at a specified
exercise price would be an XYZ call option. An option to sell 100 shares of common stock of the
XYZ Corporation at a specified exercise price would be an XYZ put option.

There are two different kinds of options — physical delivery options and cash-settled options.
A physical delivery option gives its owner the right to receive physical delivery (if it is a call), or to
make physical delivery (if it is a put), of the underlying interest when the option is exercised. A
cash-settled option (other than a binary option or a range option) gives its owner the right to receivea cash payment based on the difference between a determined value of the underlying interest at thetime the option is exercised and the fixed exercise price of the option. A cash-settled call conveys theright to receive a cash payment if the determined value of the underlying interest at exercise —this value is known as the exercise settlement value — exceeds the exercise price of the option,
and a cash-settled put conveys the right to receive a cash payment if the exercise settlement value
is less than the exercise price of the option. Binary options and range options are special kinds ofcash-settled options described in Chapter II. The examples in this document generally refer tooptions other than binary options or range options except as otherwise stated.
Each options market selects the underlying interests on which options are traded on that market.
Options are currently available covering four types of underlying interests: equity securities (whichterm includes “fund shares” described in Chapter III), indexes (including stock, variability, strategybased, dividend and relative performance indexes), debt securities and credit events, and foreign
currencies. Options on other types of underlying interests may become available in the future.
Most options have standardized terms — such as the nature and amount of the underlying interest,
the expiration date, the exercise price, whether the option is a call or a put, whether the option isa physical delivery option or a cash-settled option, the manner in which the cash payment and theexercise settlement value of a cash-settled option are determined, the multiplier of a cash-settled
option, the exercise price setting date and exercise price setting formula of a delayed start option, thestyle of the option, whether the option has automatic exercise provisions, and adjustment provisions.
These standardized terms are generally described in Chapter II. Each U.S. options market publishes
specification sheets setting forth the particular standardized terms of the options traded on that3

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

options market. (The options markets may also provide for trading in options whose terms are not
all fixed in advance. Rather, subject to certain limitations, the parties to transactions in these options
may designate certain of the terms. These flexibly structured options are discussed in Chapter VII ofthis document.)
Options having the same standardized terms are identical and comprise an options series. The
standardization of terms makes it more likely that there will be a secondary market on which holders
and writers of options can close out their positions by offsetting sales and purchases. By selling an
option of the same series as the one she bought, or buying an option of the same series as the one
she wrote, an investor can close out her position in that option at any time there is a functioning
secondary options market in options of that series.
In some instances, options of the same series may be traded on more than one options market at thesame time. Options that are so traded are called multiply-traded options. Multiply-traded options
can ordinarily be purchased and written, and positions in these options can ordinarily be liquidated
in offsetting closing transactions, in any of the options markets in which the options are traded.
However, because premiums are affected by market forces, the premiums for identical multiplytraded options may not be the same in all markets at any given time.
If an options market learns that a particular underlying interest no longer meets its requirements for
options trading or is not eligible for trading in all U.S. jurisdictions, or if an options market decides
to discontinue trading in a particular options series for another reason, the options market may
stop introducing new options on that underlying interest and may in certain circumstances impose
restrictions on transactions that open new positions in options series that have been previously
introduced, although trading in the options series will ordinarily continue on at least one options
market until its expiration.
Options generally are traded on U.S. options markets during normal day-time business hours of
U.S. securities exchanges and for a short period afterward. However, trading in options may not
be confined to those hours. Trading in evening and night trading sessions may occur in options
on foreign currencies and may in the future occur in other types of options. Moreover, when there areunusual market conditions, an options market may authorize trading to continue for a substantiallylonger period than under normal conditions. Trading in an expiring option may close at an earlier
time than trading in other options. Trading hours for options are also subject to change from time
to time. Readers should ascertain the trading hours of the particular options they are interested in
trading from the options markets where those options are traded. Readers should also be aware thattrading in underlying interests is not confined to normal exchange trading hours. For example,
underlying foreign currencies and debt securities are traded in international markets on virtuallyan around-the-clock basis, and underlying equity securities may be traded in foreign markets when
U.S. markets are closed and in some U.S. markets after the close of their normal trading hours.

Readers should be aware that this document has been written to meet the requirements ofan SEC rule that requires the U.S. options markets to prepare, and brokerage firms to distribute,a document that briefly and generally describes the characteristics of options and the risks toinvestors of maintaining positions in options. Options are versatile instruments that can beused in a wide variety of investment strategies. They give the investor the ability to create
positions that reflect the investor’s opinion of an underlying interest and to select investment
strategies that reflect the investor’s tolerance for risk. This document is not designed todescribe the various potential benefits of options or how investors may use options toenhance their investment strategies or to reduce risk. Numerous other publications, including
some prepared by the U.S. options markets that are available upon request, contain discussionsof the uses and potential benefits of options and of the various trading and investment strategies
that can be employed with options. Readers who wish to balance the general discussion of4CHAPTER I: INTRODUCTION

risks that is contained in this document with a discussion of options uses, benefits and strategies
should consult one or more of these other publications.
Readers should read and understand this document in its entirety, since a number of the separate
chapters will be relevant to every reader interested in buying or writing options. For example, a reader
who is interested in options on equity securities should fully read not only Chapter III, but also should
read Chapters II, VIII and IX, as well as the discussion of risks in Chapter X. Readers should also beaware that, although this document seeks to describe the various characteristics of options and therisks that are unique to being an investor in options, there are many matters which are beyond thescope of this document that are not discussed. Chapter XI contains a discussion of the scope andlimitations of this document.

5

CHAPTER II

Options NomenclatureThis chapter contains a description of the standardized terms, and of some of the special vocabulary,
applicable to options. Most of the nomenclature is the same for options on the various types ofunderlying interests. Differences that are applicable to options on a particular underlying interest
will be described in the chapter devoted to that underlying interest.
Certain terms — options, options markets, call options, put options, physical delivery options,cash-settled options, options series, and multiply-traded options — have been defined in Chapter I.
Readers interested in those definitions should consult that chapter.
OPTION HOLDER; OPTION WRITER — The option holder is the person who buys the right conveyed

by the option.

EXAMPLE: The holder of a physical delivery XYZ call option has the right to purchase shares of XYZCorporation stock at the specified exercise price upon exercise prior to the expiration of the option.
The holder of a physical delivery XYZ put option has the right to sell shares of XYZ Corporation at
the specified exercise price upon exercise prior to the expiration of the option. The holder of a cashsettled option has the right to receive an amount of cash equal to the cash settlement amount(described below) upon exercise prior to the expiration of the option.

The option writer is obligated — if and when assigned an exercise — to perform according to theterms of the option. The option writer is sometimes referred to as the option seller. An option writer
who has been assigned an exercise is known as an assigned writer.
EXAMPLE: If a physical delivery XYZ call option is exercised by the holder of the option, the assigned
writer must deliver the required number of shares of XYZ common stock. He will be paid for theshares at the specified exercise price regardless of their current market price.

If a physical delivery put option is exercised, the assigned writer must purchase the required numberof shares at the specified exercise price regardless of their current market price. If a cash-settled
option is exercised, the assigned writer must pay the cash settlement amount.
No certificates are issued to evidence options. Investors look to the confirmations and statementsthat they receive from their brokerage firms to confirm their positions as option holders or
writers. An option holder looks to the system created by OCC’s rules, rather than to any particular
option writer, for performance of the option he owns. Similarly, option writers must perform their
obligations under the OCC system and are not obligated to any particular option holder. Since every
options transaction involves both a holder and a writer, it follows that the aggregate rights of option
holders under the system are matched by the aggregate obligations of option writers.
The OCC system is designed so that the performance of all options is between OCC and a groupof firms called Clearing Members that carry the positions of all option holders and option writers
in their accounts at OCC. To qualify as a Clearing Member, a firm must meet OCC’s financial
requirements. In addition, Clearing Members must provide OCC with collateral for the positions ofoption writers that they carry and must contribute to Clearing Funds that protect OCC against a
Clearing Member’s failure. The Clearing Members’ guarantees of the performance of options writers’
obligations, the financial strength of the Clearing Members, the collateral that they deposit, theobligations of correspondent clearing corporations, and the Clearing Funds together make up the
OCC system backing the performance of options.
6CHAPTER II : OPTIONS NOMENCLATURE

EXERCISE PRICE — In the case of a physical delivery option, the exercise price (which is sometimes
called the “strike price”) is the price at which the option holder has the right either to purchase or tosell the underlying interest.

EXAMPLE: A physical delivery XYZ 40 call option gives the option holder the right to purchase
100 shares of XYZ stock at an exercise price of $40 a share. A physical delivery XYZ 40 put option
gives the option holder the right to sell 100 shares of XYZ common stock at an exercise price of$40 a share.

The exercise price of a cash-settled option (other than a binary option or a range option) is the basefor the determination of the amount of cash, if any, that the option holder is entitled to receive upon
exercise (see the discussion of “Cash Settlement Amount and Exercise Settlement Value” below). The
exercise price of a binary option is the value or level of the underlying interest above, below, or, insome cases, at which the option will be in the money at expiration, thereby causing the fixed cash
settlement amount to become payable (see the “Binary Option” definition below). In the case of arange option, the exercise price is the option’s range length (see the “Range Option” definition below).
Exercise prices for each options series (except for series of delayed start options) are establishedby the options market on which that series is traded at the time trading in the series is introduced,
and are generally set at levels above and below the then market value of the underlying interest.
However, the options markets may use other methods to set exercise prices. Specific information
regarding the setting of exercise prices may be obtained from the listing options market. The options
markets generally have the authority to introduce additional series of options with different exercise
prices based on changes in the value of the underlying interest, or in response to investor interest, orin unusual market conditions, or in other circumstances. For series of delayed start options, exercise
price setting formulas — rather than exercise prices — are established by the options market on which
each series is traded before the time trading commences in each such series. Those exercise pricesetting formulas provide that on the exercise price setting date the exercise price for the series will
be fixed at the money, in the money by a certain amount, or out of the money by a certain amount.
EXPIRATION DATE — This is the date on which the option expires. If an option has not been
exercised prior to its expiration, it ceases to exist — that is, the option holder no longer has any
rights, and the option no longer has any value. The expiration dates for the various options series
are fixed by the options market on which the series trades. Readers should learn the expiration dateof each option they wish to buy or write.
STYLE OF OPTION — The style of an option refers to when that option is exercisable. At the dateof this document there are three different styles of options — American-style, European-style andcapped. Subject to certain limitations prescribed in the rules of OCC or the options markets andsubject to applicable law, these three styles are exercisable at the following times:

Each American-style option other than a delayed start option may be exercised at any timeprior to its expiration. An American-style delayed start option may be exercised at any time after
its exercise price is set and before its expiration date.
A European-style option may be exercised only during a specified period before the option
expires. Every European-style option being traded at the date of this document is exercisable
only on its expiration date.
A capped option will be automatically exercised prior to expiration if the options market
on which the option is trading determines that the value of the underlying interest at a
specified time on a trading day “hits the cap price” for the option. Capped options may also be
exercised, like European-style options, during a specified period before expiration. This period
7

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

is the expiration date for all capped options traded at the date of this document. The special
terminology applicable to capped options is discussed at the end of this chapter.
European-style or capped options having an expiration period that is longer or shorter than their
expiration date may be introduced for trading in the future.
BINARY OPTION — A binary option is a cash-settled option having only two possible payoff outcomes:
either a fixed amount or nothing at all. Some binary options are referred to as “fixed return options.”
As of the date this product was approved for trading, the only binary options approved for trading(other than credit default options, as defined below) are binary stock options, which are binary
options on individual equity securities, including fund shares; and binary index options, which arebinary options on broad-based securities indexes (including volatility indexes). The binary options
approved for trading are all subject to automatic exercise. The holder of a binary option other than acredit default option has the right to receive (and the writer of a binary option has the obligation topay) the exercise settlement amount for the option if the value of the underlying interest as of thetime specified by the applicable listing options market (i.e., the exercise settlement value) meets thecriteria for automatic exercise of the option, as specified in the rules of the listing options market. If
those criteria are not met, the option will expire worthless. Credit default options are a specific kindof binary option discussed at the end of Chapter V. Except for credit default options, binary options
are European-style options.
RANGE OPTION — A range option is a European-style, cash-settled option that has a payout if thevalue of the underlying interest falls within a specific range of values (the range length) at expiration.
As the underlying interest value increases throughout the range length, the amount of the payout(i.e., the cash settlement amount) of the range option increases linearly to a maximum value, remains
constant at that value through the middle of the range length and then decreases linearly to zeroas the value of the underlying continues to increase to the top of the range length. A more detailed
description of this feature of range options is set forth below under the caption “Cash Settlement
Amount and Exercise Settlement Value.” Range options are of a single type rather than consistingof puts and calls.
UNIT OF TRADING; CONTRACT SIZE — The unit of trading (which is sometimes referred to as thecontract size) of a physical delivery option is the amount of the underlying interest that is subject tobeing purchased or sold upon the exercise of a single option contract. For example, the unit of trading
for most options on equity securities is 100 shares. Thus, a physical delivery XYZ 50 call will give its
holder the right upon exercise to purchase 100 shares of XYZ at $50 per share. If the option is trading at apremium of, say, $4 per share, then the aggregate premium for a single option contract would be $400.

The contract size of a cash-settled option other than a binary option or a range option is determinedby the multiplier that is fixed by the options market on which the options series is traded. The
multiplier determines the aggregate value of each point of the difference between the exercise priceof the option and the exercise settlement value of the underlying interest. For example, a multiplierof 100 means that for each point by which a cash-settled option is in the money upon exercise, there
is a $100 increase in the cash settlement amount. Similarly, if an option with a multiplier of 100 istrading at a premium of, say, $4, then the aggregate premium for a single option contract would be$400. As another example, a multiplier of 1 means that for each point by which a cash-settled option
is in the money upon exercise, there is a $1 increase in the cash settlement amount. Similarly, if an
option with a multiplier of 1 is trading at a premium of, say, $4, then the aggregate premium for asingle option contract would be $4. The contract size of a range option is determined by the option’s
multiplier and its maximum range exercise value. The contract size of a binary option is its cash
settlement amount, which is fixed by the options market for any series of binary options at or before
the opening of trading in that series. Some options markets define the cash settlement amount forbinary options as being the multiplier times a fixed settlement value. Other options markets define
the cash settlement amount for binary options without reference to a multiplier.

8CHAPTER II : OPTIONS NOMENCLATURE

EXERCISE — If the holder of a physical delivery option wishes to buy (in the case of a call) or sell (in thecase of a put) the underlying interest at the exercise price — or, in the case of a cash-settled option,
to receive the cash settlement amount — his option must be exercised. In order to exercise mostoptions, option holders must give exercise instructions to their brokerage firm in accordancewith the firm’s procedures prior to the firm’s exercise cut-off time. The exercise process is
discussed in Chapter VIII. Every option holder should understand this process and should learn
his brokerage firm’s procedures concerning exercise, and its exercise cut-off time, for each
option she may buy.

Although an option holder must assure that action is taken to exercise most options, capped options
and certain cash-settled options provide for automatic exercise in specified circumstances. Other
options having automatic exercise provisions may be introduced for trading in the future.
The rules of the options markets generally limit the total number of puts or calls on the sameunderlying interest that a single investor or group of investors acting in concert may exercise during
a specified time period. Information concerning the exercise limits for particular options is available
from the options market on which those options are traded or from brokerage firms.
The right to exercise an option may be restricted in certain circumstances. This is discussed under“Risks of Option Holders” in Chapter X.
When an option has been exercised, OCC will assign the exercise in accordance with its rules toa Clearing Member whose account with OCC reflects the writing of an option of the same series.
The Clearing Member may, in turn, assign this exercise to one of its customers who is a writer inaccordance with the Clearing Member’s procedures, and the assigned writer will then be obligatedto perform the obligations of the option — that is, to sell (in the case of a physical delivery call) or buy(in the case of a physical delivery put) the underlying interest at the exercise price, or, in the case of acash-settled option, to pay the cash settlement amount. The assignment process is discussed further
in Chapter VIII.
CASH SETTLEMENT AMOUNT, SETTLEMENT CURRENCY and EXERCISE SETTLEMENT VALUE — The cash

settlement amount is the amount of cash that the holder of a cash-settled option is entitled toreceive upon exercise. In the case of a cash-settled option other than a binary option or a range
option, it is the amount by which the exercise settlement value of the underlying interest of a cashsettled call exceeds the exercise price, or the amount by which the exercise price of a cash-settled
put exceeds the exercise settlement value of the underlying interest, multiplied by the multiplierfor the option.
EXAMPLE: Assume that a holder of a cash-settled call on the XYZ index that has an exercise price of
80 exercises it when the exercise settlement value of the index is 85. If the multiplier for XYZ index
options is 100, the assigned writer would be obligated to pay, and the exercising holder would beentitled to receive, a cash settlement amount of $500 ($85 minus $80 multiplied by 100 = $500).

EXAMPLE: Assume that a holder of a cash-settled call on the XYZ index that has an exercise
price of 80 exercises it when the exercise settlement value of the index is 85. If the multiplier for
XYZ index options is 1, the assigned writer would be obligated to pay, and the exercising holder
would be entitled to receive, a cash settlement amount of $5 ($85 minus $80 multiplied by 1 = $5).

9

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONSIn the case of a binary option, the cash settlement amount is determined by the relevant listing
options market and, whether or not established through use of a multiplier, is fixed and does not vary
(except in the case of certain adjustments described below) regardless of the amount by which theexercise settlement value exceeds (in the case of a binary call option) or is less than (in the case of abinary put option) the exercise price.
EXAMPLE: An investor holds a binary call option on XYZ security that has an exercise price of$80 and a fixed cash settlement amount of $100. If the exercise settlement value of XYZ is $81 at
expiration, the investor will receive $100. If the exercise settlement value is $90, the investor will
still receive $100. If, on the other hand, the exercise settlement value of XYZ at expiration is below$80, the investor will receive nothing, and the option will expire worthless.

It is very important to note that the conditions under which a binary option returns a cash settlement
amount may vary depending upon the rules of the listing options market. Specifically, the listing
options market may list binary options that return a cash settlement amount if: (1) the exercise
settlement value of the underlying is above the exercise price (a binary call); or (2) the exercise
settlement value of the underlying is below the exercise price (a binary put). In addition, certain binary
call options return a cash settlement amount if the exercise settlement value of the underlying isexactly equal to the exercise price.
EXAMPLE: Assume XYZ stock is the underlying security for a binary stock option with an exercise
price of $80, and the exercise settlement value of XYZ at expiration is exactly $80. If the listing
options market specified that the option would return a cash settlement amount if the exercise
settlement value was above the exercise price, the option will expire unexercised. If, however, thelisting options market specified that the option would return a cash settlement amount if the exercise
settlement value was at or above the exercise price, the option would be automatically exercised
at expiration.

In the case of a range option, the cash settlement amount varies depending on where the exercise
settlement value of the underlying index falls within the range length at expiration. At the time a
series of range options is opened for trading, the listing options market will specify the range length
as well as the range interval, which is a value equal to a certain number of index points that is used
to divide the range length into three segments: the low range, the middle range and the high range.
The low range begins at the low end of the range length and ends one range interval higher. The highrange begins one range interval below the high end of the range length and ends at the high endof the range length. The high range and the low range are of equal length. The middle range is thesegment of values between the end of the low range and the beginning of the high range. The listing
options market will also set a maximum range exercise value and a multiplier, the product of which is
the maximum cash settlement amount. This maximum cash settlement amount will be payable if thelevel of the underlying index falls anywhere in the middle range at expiration. Within the low range,
the cash settlement amount increases from zero to the maximum cash settlement amount as thelevel of the underlying index increases. Within the high range, the cash settlement amount decreases
from the maximum cash settlement amount to zero as the level of the underlying index continues
to increase.

10CHAPTER II : OPTIONS NOMENCLATURE

EXAMPLE: Assume for a series of range index options that the listing options market has specified
a range length from 1000 to 1100, a range interval of 10, a maximum range exercise value of 10
and a multiplier of $100. The series therefore has a maximum cash settlement amount of $1,000(multiplier times the maximum range exercise value), a low range from 1000 to 1010, a middle range
from 1010 to 1090 and a high range from 1090 to 1100. The table below summarizes the variations
in cash settlement amount based on the foregoing assumptions:MiddleRange

Low Range

High Range

Value of theUnderlying
Index

Below
1000

1000

1001

1002

…

1009

1010
-1090

1091

…

1098

1099

1100

Above
1100

Cash
Settlement
Amount ($)

0

0

100

200

…

900

1,000

900

…

200

100

0

0

The currency in which the cash settlement amount is payable is called the settlement currency. The
settlement currency for all cash-settled options with standardized terms that are trading at the dateof this document is U.S. dollars. It is possible that another currency will be the settlement currency
for some options introduced in the future.
The manner of determining the exercise settlement value for a particular option series is fixed by
the options market on which the series is traded. The exercise settlement values for options on aparticular underlying interest traded in one options market will not necessarily be determined in
the same manner as the exercise settlement values for options or futures on the same underlying
interest that may be traded in other markets.
Options markets may change the method of determining exercise settlement values for particular
options series on specified days or on all days. These changes may be made applicable to series
outstanding at the time the changes become effective. Alternatively, an options market might phasein a change in the method of determining exercise settlement values by opening new series of
options identical to outstanding series in all respects other than the method for calculating exercise
settlement values. Such new series would trade alongside the old series until both series expire,
but the two series would not be interchangeable. In the future, options markets may, subject toregulatory approval, introduce options whose exercise settlement values may not exceed a specified
maximum amount.
ADJUSTMENT — Adjustments may be made to some of the standardized terms of outstanding

options upon the occurrence of certain events related to the underlying security. Adjustments that
may be made to a particular type of options are discussed in the chapter relating to that type.

The determination of whether to adjust outstanding options in response to a particular event, and, if
so, what the adjustment should be, is made by OCC, taking into consideration policies established by
a committee consisting of representatives of each of the U.S. options markets and a representative of
OCC. OCC and the exchanges are free to discuss considerations pertaining to any adjustment decisionor policy, but every adjustment determination is within OCC’s sole discretion and is binding on allinvestors and OCC determines the value of distributed property involved in contract adjustments.
PREMIUM — The premium is the price that the holder of an option pays and the writer of an option
receives for the rights conveyed by the option. It is the price set by the holder and writer, or theirbrokers, in a transaction in an options market where the option is traded. It is not a standardized
term of the option. The premium does not constitute a “down-payment.” It is simply and entirely

11CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

a nonrefundable payment in full — from the option holder to the option writer — for the rights
conveyed by the option.
The premium is not fixed by the options markets or by OCC. Premiums are subject to continuouschange in response to market and economic forces, including changes in the trading conditions on
the markets where the particular options are traded. The factors which may generally affect thepricing of an option include such variables as the current value of the underlying interest and therelationship between that value and the exercise price, the current values of related interests(e.g., futures on the underlying interest or other interests related to the underlying interest), thestyle of the option, the individual estimates of market participants of the future volatility of theunderlying interest, the historical volatility of the underlying interest, the amount of time remaining
until expiration, cash dividends payable on the underlying stock (in the case of stock and stock index
options), current interest rates, current currency exchange rates (in the cases of foreign currency
options and options whose premiums or cash settlement amounts are payable in a foreign currency),
the depth of the market for the option, the effect of supply and demand in the options market as wellas in the markets for the underlying interest and for related interests, the information then available
about current prices and operations in the markets for the underlying interest and related interests,
the individual estimates of market participants of future developments that might affect any of theforegoing, and other factors generally affecting the prices or volatility of options, underlying interests,
related interests or securities generally. Also see the discussion below of “Intrinsic Value and Time
Value.” Readers should not assume that options premiums will necessarily conform or correlatewith any theoretical options pricing formula, chart, last sale, or the prices of the underlying interest,
related interests or other options at any particular time.
The currency in which the premium is payable is called the premium currency. The premium
currency for most options is U.S. dollars. However, the premium currency for cross-rate foreign
currency options, which are discussed in Chapter VI, is a foreign currency, and other options withpremiums payable in a foreign currency may be introduced after the date of this document.
OPENING TRANSACTION — This is a purchase or sale transaction by which a person establishes orincreases a position as either the holder or the writer of an option.
CLOSING TRANSACTION — This is a transaction in which, at some point prior to expiration, the option
holder makes an offsetting sale of an identical option, or the option writer makes an offsettingpurchase of an identical option. A closing transaction in an option reduces or cancels out an
investor’s previous position as the holder or the writer of that option.

EXAMPLE: In June an investor buys a December XYZ 50 call at an aggregate premium of $500. By
September the market price of the option has increased to $700. To seek to realize his $200 profit, theinvestor can direct his broker to sell an offsetting December XYZ 50 call in a closing transaction. On
the other hand, if by September the market price of the option has decreased to $300, the investor
might still decide to sell the option in a closing transaction, thereby limiting his loss to $200.

Although holders of American-style options (other than delayed start options for which the exercise
price has not yet been set) have the right to exercise at any time before expiration, holders frequently
elect to realize their profits or losses by making closing transactions because the transaction costsof the closing transactions may be lower than the transaction costs associated with exercises,
and because closing transactions may provide an opportunity for an option holder to realize theremaining time value (described below) of the option that would be lost in an exercise. The holder’s
only means of realizing profit or loss on a delayed start option before its exercise price has been set,or on a European-style or capped option when the option is not exercisable, is by selling the option ina closing transaction.

12

CHAPTER II : OPTIONS NOMENCLATURE

POSITION LIMITS — The rules of the options markets generally limit the maximum number of options
on the same side of the market (i.e., calls held plus puts written, or puts held plus calls written)
with respect to a single underlying interest that may be carried in the accounts of a single investor
or group of investors acting in concert. These limits — which are called position limits — differ
for options on different underlying interests. Information concerning the position limits forparticular options is available from the options market on which those options are traded orfrom brokerage firms.
COMBINATIONS; SPREADS and STRADDLES — Combination positions are positions in more than one
option at the same time. Spreads and straddles are two types of combination positions. A spread
involves being both the buyer and writer of the same type of option (puts or calls) on the sameunderlying interest, with the options having different exercise prices and/or expiration dates. A
straddle consists of purchasing or writing both a put and a call on the same underlying interest,with the options having the same exercise price and expiration date.
LONG and SHORT — The word long refers to a person’s position as the holder of an option, and theword short refers to a person’s position as the writer of an option.
COVERED CALL WRITER — If the writer of a physical delivery call option owns or acquires the amountof the underlying interest that is deliverable upon exercise of the call, she is said to be a covered
call writer.

EXAMPLE: An individual owns 100 shares of XYZ common stock. If she writes one physical delivery
XYZ call option — giving the call holder the right to purchase 100 shares of the stock at a specified
exercise price  — this would be a covered call. If she writes two such XYZ calls, one would be covered
and one would be uncovered.

The distinction between covered and uncovered call writing positions is important since uncovered
call writing can involve substantially greater exposure to risk than covered call writing. A call option
writer who is not a covered writer may hold another option in a spread position and thereby offsets
some or all of the risk of the option he has written. However, the spread may not offset all of therisk of the uncovered writing position. For example, if the long portion of the spread has a higher
exercise price than the exercise price of the short, or if the long has an earlier expiration date thanthe expiration date of the short, then the writer may still be exposed to significant risks from his
uncovered writing position.
AT THE MONEY — This term means that the current market value of the underlying interest is thesame as the exercise price of the option. A range option, which is of a single type rather than being
categorized as a call or a put, is said to be at the money if the current level of the underlying index isat the top or bottom of the range length.
IN THE MONEY — A call option is said to be in the money if the current market value of the underlying
interest is above the exercise price of the option. A put option is said to be in the money if thecurrent market value of the underlying interest is below the exercise price of the option. A range
option, which is of a single type rather than being categorized as a call or a put, is said to be in themoney if the current level of the underlying index falls within its range length.

EXAMPLE: If the current market price of XYZ stock is $43, an XYZ 40 call would be in the money

by $3.

13

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONSEXAMPLE: Assume a series of XYZ range options has a maximum cash settlement amount of $1,000,
a low range from 1000 to 1010, a middle range from 1010 to 1090 and a high range from 1090 to
1100. If the current level of XYZ index is 1003, the option would be in the money by $300. If thecurrent level of XYZ index is from 1010 to 1090, the option would be in the money by $1,000, themaximum cash settlement amount. If the current level of XYZ index is 1093, the option would be in
the money by $700.

OUT OF THE MONEY — If the exercise price of a call is above the current market value of the underlying
interest, or if the exercise price of a put is below the current market value of the underlying
interest, the call or put is said to be out of the money. A range option, which is of single type rather
than being categorized as a call or a put, is said to be out of the money if the current level of theunderlying index falls outside of its range length.

EXAMPLE: With the current market price of XYZ stock at $40, a call with an exercise price of $45
would be out of the money by $5 — as would a put with an exercise price of $35.

EXAMPLE: Assume a series of XYZ range options has a specified range length from 1000 to 1100.
If the current level of XYZ index is either below 1000 or above 1100, the series of XYZ range options
would be out of the money.

INTRINSIC VALUE and TIME VALUE — It is sometimes useful to consider the premium of an option as
consisting of two components: intrinsic value and time value.

In the case of an option other than a binary option, the intrinsic value reflects the amount, if any, bywhich the option is in the money. An option that is out of the money would have an intrinsic valueof zero. Delayed start options, other than series whose exercise prices are to be set in the money,
have no intrinsic value before the exercise price is set. Thereafter, as in the case of any other option,
whether a delayed start option has intrinsic value depends on the level of the underlying index at
the time. A binary option (other than a credit default option) that is in the money has an intrinsic
value equal to the fixed cash settlement amount of the option. Where the listing exchange has
specified that a binary call will return a cash settlement amount if the exercise settlement value ofthe underlying is exactly equal to the exercise price, the call will have an intrinsic value equal to the
cash settlement amount if it is either in the money or at the money. As is further discussed under
the heading “Credit Default Options and Credit Default Basket Options” in Chapter V, credit default
options have no intrinsic value.
Time value is whatever the premium of the option is in addition to its intrinsic value. Time value
is that part of the premium that reflects the time remaining before expiration. An American-style
option may ordinarily be expected to trade for no less than its intrinsic value prior to its expiration,although occasionally an American-style option will trade at less than its intrinsic value. Because
European-style options (including binary options and range options) and capped options are notexercisable at all times, they are more likely than American-style options to trade at less than theirintrinsic value when they are not exercisable.
EXAMPLE OF A CALL WITH INTRINSIC VALUE: At a time when the current market price of XYZ stock
is $46 a share, an XYZ 40 call would have an intrinsic value of $6 a share. If the market price of thestock were to decline to $44, the intrinsic value of the call would be only $4. Should the price of thestock drop to $40 or below, the call would no longer have any intrinsic value.
14

CHAPTER II : OPTIONS NOMENCLATURE

EXAMPLE OF A PUT WITH INTRINSIC VALUE: At a time when the current market price of XYZ stock
is $46 a share, an XYZ 50 put would have an intrinsic value of $4 a share. Were the market priceof XYZ stock to increase to $50 or above, the put would no longer have any intrinsic value.

EXAMPLE OF TIME VALUE: At a time when the market price of XYZ stock is $40 a share, an
XYZ 40 call may have a current market price of, say, $2 a share. This is entirely time value.

An option with intrinsic value may often have some time value as well — that is, the market price ofthe option may be greater than its intrinsic value. This could occur with an option of any style.
EXAMPLE: With the market price of XYZ stock at $45 a share, an XYZ 40 call may have a current
market price of $6 a share, reflecting an intrinsic value of $5 a share and a time value of $1 a share.

An option’s time value is influenced by several factors (as discussed above under “Premium”),
including the length of time remaining until expiration. An option is a “wasting” asset; if it is not soldor exercised prior to its expiration, it will become worthless. As a consequence, all else remaining thesame, the time value of an option usually decreases as the option approaches expiration, and thisdecrease accelerates as the time to expiration shortens. However, there may be occasions when themarket price of an option may be lower than the market price of another option that has less timeremaining to expiration but that is similar in all other respects.
An American-style option’s time value is also influenced by the amount the option is in the moneyor out of the money. An option normally has very little time value if it is substantially in the money.
Although an option that is substantially out of the money has only time value, the amount of thattime value is normally less than the time value of an option having the same underlying interest andexpiration that is at the money.
Another factor influencing the time value of an option is the volatility of the underlying interest. All
else being the same, options on more volatile interests command higher premiums than options on
less volatile interests.
Time value is also influenced by the current cost of money. Increases in prevailing interest rates tend
to cause higher premiums for calls and lower premiums for puts, and decreases in prevailing interest
rates tend to cause lower premiums for calls and higher premiums for puts.

The following is a description of the terminology applicable to capped options:CAP INTERVAL — The cap interval is a constant established by the options market on which a seriesof capped options is traded. The exercise price for a capped-style option plus the cap interval (in thecase of a call), or minus the cap interval (in the case of a put), equals the cap price for the option. For
example, if a capped call option with an exercise price of 360 has a cap interval of 30, then the cap
price at which the option will be automatically exercised would be 390.
CAP PRICE — The cap price is the level that the automatic exercise value of a capped option mustreach in order for the option to be automatically exercised. The cap price of a call option is above, andof a put option below, the exercise price of the option.

15

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONSEXAMPLE: A 360 ABC capped call index option has an exercise price of 360 and a cap interval of 30.
The call option has a cap price of 390.

EXAMPLE: A 310 XYZ capped put index option has an exercise price of 310 and a cap interval of 20.
The put option has a cap price of 290.

AUTOMATIC EXERCISE VALUE — The automatic exercise value of a capped option is the price or levelof the underlying interest determined in a manner fixed by the options market on which the option istraded for each trading day as of a specified time of that day.

EXAMPLE: A 310 XYZ capped put index option has a cap interval of 20, and therefore has a cap priceof 290. Assume that the options market on which the option is traded has specified the closeof trading on each trading day as the time for determining the automatic exercise value on the
XYZ index, and that the index level reaches a low of 289 during a particular trading day, but is at
291 at the close. The automatic exercise value has not reached the cap price, and the automatic
exercise feature of the option is not triggered, because the index level was not at or below the cap
price at the time of day specified by the options market for determining the automatic exercise value.

CASH SETTLEMENT AMOUNT — This is the cash amount that the holder of a cash-settled capped
option is entitled to receive upon the exercise of the option. In the case of a capped option that has
been automatically exercised, the cash settlement amount is equal to the cap interval times themultiplier for the option, even if the automatic exercise value on the day that the automatic exercisefeature is triggered exceeds (in the case of a call) or is less than (in the case of a put) the cap price. If
the capped option is voluntarily exercised at expiration, the cash settlement amount is determined in
the same manner as for other styles of cash-settled options.

EXAMPLE: A 360 ABC capped call index option has a cap interval of 30 and a multiplier of 100.
The automatic exercise value of the ABC index is 396 on a particular trading day. The call option
is automatically exercised, and the cash settlement amount is $3000 (equal to the cap intervalof 30 times the multiplier of 100).

EXAMPLE: A 360 ABC capped call index option has a cap interval of 30 and a multiplier of 100. The
automatic exercise value of the ABC index never equals or exceeds the cap price of 390 during the lifeof the option, and the exercise settlement value of the option is 367 on the final trading day. Upon
exercise of the option, the holder is entitled to receive a cash settlement amount of $700 (equal to themultiplier of 100 times the difference between the exercise settlement value of 367 and the exercise
price of 360).

16

CHAPTER II : OPTIONS NOMENCLATURE

A delayed start option is an option that does not have an exercise price when first introduced for
trading but instead has an exercise price setting formula pursuant to which the exercise price will
be fixed on a specified future date. The following is a description of the terminology applicable todelayed start options:
EXERCISE PRICE SETTING DATE —The exercise price setting date for a series of delayed start options isthe date on which the options market on which the series is traded will set the exercise price for theseries. The exercise price setting date is specified before the commencement of trading of each seriesof delayed start options. Specific information regarding exercise price setting dates may be obtained
from the listing options market.
EXERCISE PRICE SETTING FORMULA —The exercise price setting formula for a series of delayed start
options is the formula used by the options market on which the series is traded to set the exercise
price for the series on the exercise price setting date. The exercise price setting formula is specified
before the commencement of trading of each series of delayed start option. The formula for aparticular series may provide that the exercise price will be at the money, in the money by a specified
amount, or out of the money by a specified amount. Exercise prices may be rounded as specified by
the listing options market.

EXAMPLE: In January, an American-style delayed start option on the ABC index is opened for tradingwith an exercise price setting date of the third Friday in September and an exercise price setting
formula specifying that the exercise price will be set at the closing value of the ABC index on theexercise price setting date, rounded to the nearest whole number. The option may not be exercisedat all until after the third Friday in September because it will not have an exercise price until thattime. At the close of trading on the third Friday in September, the options market on which thedelayed start option is trading will determine the closing value of the ABC index and set the exercise
price based on that value. For example, if the options market determines that the ABC index closed
at 908.10 on the exercise price setting date, the options market would round that value to 908, andfrom that time until its expiration date the delayed start option would trade as a regular Americanstyle option with an exercise price of 908.

17

CHAPTER III

Options on Equity Securities
The term “stock options” is used broadly in this document to include not only options on common
stocks but also options on all other types of equity securities, such as limited partnership interests,“American Depository Receipts” and “American Depository Shares” representing interests in foreign
entities, preferred stocks, and fund shares. The term “fund shares” includes interests in exchangetraded funds and other entities holding or trading in one or more types of investments, and as
used in this document the term “equity securities” includes fund shares.
Issuers of underlying equity securities do not participate in the selection of their securities for
options trading (although some options markets may determine not to select an underlying security
without the consent of the issuer of that security). Issuers of underlying equity securities have no
responsibility regarding the issuance, the terms, or the performance of options, and option holders
have no rights as security holders of such issuers.
The principal risks of holders and writers of stock options are discussed in Chapter X. Readersinterested in buying or writing stock options should carefully read that chapter.

Features of Stock Options
The following discussion relates primarily to stock options other than binary options. A separate
description of the features of binary stock options may be found at the end of this chapter.
As a general rule a single-stock option covers 100 shares of the underlying security, although in thecase of options covering fund shares, options covering 100 or 1000 shares may be available. Other
stock options departing from the general rule may be introduced in the future. The number ofunderlying shares covered by any stock option may be adjusted after the option is issued if certain
events occur, as described below.
The exercise prices of the stock options that are traded at the date of this document are stated in
U.S. dollars per share. The exercise price of an option must be multiplied by the number of shares
underlying the option in order to determine the aggregate exercise price and aggregate premium ofthat option.
EXAMPLE: An XYZ 40 call gives the buyer the right to purchase 100 shares of XYZ stock at a priceof $40 per share, or a total price of $4,000.

In the future, stock options may, with regulatory approval, be introduced that have exercise prices in aforeign currency.
Adjustments may be made to certain of the standardized terms of outstanding stock options whencertain events occur, such as a stock dividend, stock distribution, stock split, reverse stock split, rights
offering, distribution, reorganization, recapitalization, reclassification in respect of an underlying
security, or a merger, consolidation, dissolution or liquidation of the issuer of the underlying security.
In the following discussion, there is a brief description of a number of general adjustment
rules applicable to stock options that are in effect at the date of this document. Such rules may
be changed from time to time with regulatory approval. OCC has the authority to make suchexceptions as it determines to be appropriate to any of the general adjustment rules.
As a general rule, no adjustment is made for ordinary cash dividends or cash distributions. A
cash dividend or distribution will generally be considered “ordinary,” regardless of size, if OCC believes
18

CHAPTER III : OPTIONS ON EQUITY SECURITIESthat it was declared pursuant to a policy or practice of paying such dividends or distributions on
a quarterly or other regular basis. No adjustment will normally be made for any cash dividend or
distribution that amounts to less than $0.125 per underlying share. For contracts originally listedwith a unit of trading larger than 100 shares, no adjustment normally would be made for any cash
dividends or distributions that amount to less than $12.50 per contract. As an exception to thegeneral rule, options on fund shares will generally be adjusted for capital gains distributions even
if made on a regular basis, and adjustments may be made for certain other distributions in respectof fund shares in special circumstances described in OCC’s rules, provided in each case that theamount of the adjustment would be $0.125 or more per fund share. Determinations whether toadjust for cash dividends or distributions not covered by the preceding rules, or when other special
circumstances apply, are made on a case-by-case basis.
Because stock options are not generally adjusted for ordinary cash dividends and distributions,covered writers of calls are entitled to retain dividends and distributions earned on the underlying
securities during the time prior to exercise. However, a call holder becomes entitled to the dividend
if he exercises the option prior to the ex-dividend date even though the assigned writer may
not be notified that he was assigned an exercise until after the ex-date. Because call holders
may seek to “capture” an impending dividend by exercising, a call writer’s chances ofbeing assigned an exercise may increase as the ex-date for a dividend on the underlying
security approaches.
Stock dividends, stock distributions and stock splits may result in an adjustment of the number of
options held or written or the number of underlying shares, and in some cases may also result in an
adjustment of the exercise price.
When a stock distribution, stock split or stock dividend results in the issuance of one or more wholeshares of stock for each outstanding share—such as a 2-for-1 or a 3-for-1 stock split—as a generalrule the number of underlying shares will not be adjusted. Instead, the number of outstanding
options will be proportionately increased and the exercise price will be proportionately decreased.
EXAMPLE: Before a 2-for-1 stock split, an investor holds an option on 100 shares of XYZ stockwith an exercise price of $60. After adjustment for the split, he will hold two XYZ options, eachon 100 shares and each with an exercise price of $30.

Other stock dividends, stock distributions and stock splits may result in an adjustment in the numberof underlying shares and the exercise price.
EXAMPLE: An investor bought an XYZ 50 option — either a call or a put — and XYZ Corporation
subsequently effected a 3-for-2 stock distribution. Instead of covering 100 shares of stock at an
exercise price of $50 a share, each outstanding option could be adjusted to cover 150 shares at an
exercise price of $33.33 per share. The aggregate exercise price remains substantially the same
before and after the adjustment ($50 x 100 = $5,000 and $33.33 x 150 = $4,999.50).

As a general rule, adjustments in exercise prices are rounded to the nearest exercise price increment,
and adjustments in the number of underlying shares are rounded down to eliminate fractional shares.
In the latter case, the property deliverable upon exercise may be adjusted to include the value of theeliminated fractional share, as determined by OCC.
Note that in the preceding example where the exercise price of the adjusted XYZ option was rounded
down, the exercising put holder or assigned call writer would lose $0.50 as a result of the rounding.
Rounding up could result in losses to exercising call holders and assigned put writers.
19

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

A reverse stock split, combination of shares, or similar event will generally result in an adjustment in thenumber of shares deliverable upon exercise, while the aggregate exercise price remains unchanged.
EXAMPLE: An investor holds a call option covering 100 shares of XYZ stock with an exercise price of
50 resulting in an aggregate exercise price for the contract of $5,000 ($50 x 100). After a 1-for-10
reverse split, the deliverable could be reduced to 10 shares while the nominal exercise price remained$50. In that case, upon exercise of the adjusted option, the investor would still pay $5,000 ($50 x 100,
not $50 x 10), but would receive 10 shares of XYZ stock instead of 100.

An adjustment that substitutes cash for all, such as in the case of a cash merger or other event
whereby the underlying security is converted solely to cash, or part of the deliverable security will
eliminate or reduce the time value of the option, and therefore the option may lose significant value,both immediately and at exercise, as a result of the adjustment.
EXAMPLE: Because of an all cash merger involving XYZ Corporation, the stock held by XYZ’s owners
is extinguished in return for a payment of $50 in cash per XYZ share. In response to the corporate
action on the underlying security, XYZ options generally will be adjusted to require the delivery of$50 per share upon exercise. As a result, an XYZ call option with an exercise price of $40 will lose allof its time value and the option’s value will only reflect the intrinsic value of $10 ($50 – $40 = $10).
Additionally, an XYZ call option with an exercise price of $60 will become worthless because theexercise price exceeds the $50 cash settlement delivery amount.

EXAMPLE: An investor bought a $50 put option representing the obligation to deliver 100 shares ofCompany A stock upon exercise. Company A subsequently effected a 1-for-3 reverse stock split andthe terms of the reverse split provided for payment of cash in lieu of fractional shares, using a valueof $60 per share for this purpose. As a general rule, any adjustment in the number of underlying
shares is rounded to eliminate fractional shares, so the number of shares to be delivered could be
adjusted to 33 shares (100 x ¹/³ = 33¹/³, with the ¹/³ fractional share rounded down as part of theadjustment to eliminate fractional shares) plus $20 cash in lieu of the ¹/³ fractional share ($60 x ¹/³)
if cash is paid in lieu of such fractional share. Because this cash delivery obligation is generally fixedat the time of adjustment, the investor would lose the time value of the fractional share. This option
may continue to trade until expiration, with the deliverable at exercise or expiration being
33 shares plus $20 cash.

The obligation to make a fixed cash payment in lieu of a fractional share could result, depending on
the relative size of the fixed cash obligation, in an immediate reduction in the value of the option
and at exercise could result in the option being less valuable or worthless in comparison to the value
it would have had in the absence of the adjustment. If a stock underlying the option undergoes
multiple reverse splits prior to expiration, it will become increasingly likely that one of those reverse
stock splits eventually will create a fractional share.
As a general rule, no adjustment is made for ordinary stock dividends or distributions. A stock
dividend or distribution will generally be considered “ordinary” if (i) the number of shares distributed
does not exceed 10% of the number of shares outstanding on the declaration date and (ii) it is declaredpursuant to a policy or practice of paying such dividends or distributions on a quarterly basis.
Distributions of property other than the underlying security may result in the adjustmentof outstanding options to include the distributed property.

20CHAPTER III : OPTIONS ON EQUITY SECURITIESEXAMPLE: If XYZ “spins off” its subsidiary ABC by distributing to its stockholders 2.5 sharesof ABC stock for each share of XYZ stock, outstanding XYZ options might be adjusted to requiredelivery of 100 shares of XYZ stock plus 250 shares of ABC stock.

Alternatively, the exercise prices of outstanding options might be reduced by the value, on a
per-share basis, of the distributed property, as determined by OCC.
Events other than distributions may also result in adjustments. If all of the outstanding sharesof an underlying security are acquired in a merger or consolidation, outstanding options will asa general rule be adjusted to require delivery of the cash, securities, or other property payable
to holders of the underlying security as a result of the acquisition.
EXAMPLE: If XYZ is acquired by PQR in a merger where each holder of XYZ stock receives $50 plus
1/2 share of PQR stock for each share of XYZ stock held, XYZ options might be adjusted to call forthe delivery of $5,000 in cash and 50 shares of PQR stock instead of 100 shares of XYZ stock.

When an underlying security is wholly or partially converted into a debt security or a preferredstock, options that have been adjusted to call for delivery of the debt security or preferred stock
may, as a general rule, be further adjusted to call for any securities distributed as interest or
dividends on such debt security or preferred stock.
When an underlying security is converted into a right to receive a fixed amount of cash, options
on that security will generally be adjusted to require the delivery upon exercise of a fixed amountof cash, and trading in the options will ordinarily cease when the conversion becomes effective.
As a result, after such an adjustment is made all options on that security that are not in themoney will become worthless and all that are in the money will have no time value, and theexpiration date of the option will ordinarily be accelerated to fall on or shortly after the dateon which the underlying security is converted to a right to receive cash occurs. Holders of anin-the-money option whose expiration date is accelerated must be prepared to exercise that
option prior to the accelerated exercise cut off time in order to prevent the option from expiring
unexercised. See the discussion in Chapter VIII under “How to Exercise.” Writers of options whose
expiration date is subject to being accelerated bear the risk that, in the event of such anacceleration, they may be assigned an exercise notice and be required to perform their
obligations as writers prior to the original expiration date. When the expiration date of an
option is accelerated, no adjustment will be made to compensate for the accelerated expiration
date. There is no assurance that the exercise settlement date for an accelerated option will
coincide with the date on which the cash payment to the holders of the underlying security
becomes available from the issuer. Covered writers of an accelerated option may therefore be
required to pay the cash amount in respect of the option before they receive the cash paymenton the underlying security.
As a general rule, adjustments are not made for tender offers or exchange offers, whether
by the issuer or a third party, and whether for cash, securities (including issuer securities),or other property. This presents a risk for writers of put options, because a successful
tender offer or exchange offer (whether by the issuer or by a third party) may have a significant
effect on the market value of the security that the put writers would be obligated to purchaseif the put options are exercised after the expiration of the offer.
As a general rule, adjustments will not be made to reflect changes in the capital structure of theissuer where all of the underlying securities outstanding in the hands of the public (other thandissenters’ shares) are not changed into another security, cash or other property.
21

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

As a general rule, an adjustment that is made in an option will become effective on the ex-dateestablished by the primary market for trading in the underlying security.

The following is a description of certain special features of binary stock options:
As in the case of other stock options, the exercise price of a binary stock option is ordinarily stated asa price per share of the underlying security. Premium values may be stated in an amount that mustbe multiplied by a multiplier to obtain the premium price per option contract.
The listing exchange specifies the method for determining the exercise settlement value of theunderlying stock for a binary stock option. This method may be based on a volume weighted average
price for a specified time period preceding expiration, such as the last trading day before expiration.
The exercise settlement value for a stock underlying a binary option is the value of the stock asreported by the reporting authority designated by the listing options market for that purpose. Unless
OCC directs otherwise, the value as initially reported by the reporting authority is conclusively
presumed to be accurate and deemed to be final for the purpose of determining whether the option
is automatically exercised and returns a cash settlement amount. This is true even if the value issubsequently revised or determined to have been inaccurate.
Adjustments in the terms of binary stock options will be made to reflect some, but not all, of thesame events that result in adjustments to other stock options, and any adjustment that is madewill not necessarily be the same as the adjustment made to other options on the same underlying
security. As in the case of other stock options, adjustments will not normally be made to the terms ofbinary stock options to account for ordinary dividends or distributions. The guidelines set forth above
under the caption “Features of Stock Options” for determining when a distribution is considered“ordinary” will generally be applied to distributions with respect to securities underlying binary
stock options.
Adjustments in the terms of binary stock options will ordinarily be made for stock dividends, stock
distributions and stock splits, subject to the exception stated above where OCC determines to treat astock distribution as ordinary.
If OCC determines to make an adjustment to binary stock options to reflect a stock dividend, stock
distribution, or stock split, the exercise price of the option will ordinarily be proportionately reduced—
regardless of whether a whole number of shares, or other than a whole number of shares, ofthe underlying security is issued. OCC has discretion to make exceptions to the general rules
described above.
EXAMPLE: Before a 2-for-1 stock split, an investor holds one ABC binary stock option with an exercise
price of $50 that pays a cash settlement amount of $100 if the exercise settlement value of ABC at
expiration is above the exercise price. After adjustment for the split, the investor will still hold one
ABC binary stock option that pays a cash settlement amount if the exercise settlement value of ABC
at expiration is above the exercise price, but the exercise price will be $25 (i.e., $50 divided by two).
Thus, if the exercise settlement value of ABC stock at expiration, on a post-split basis, is above $25,
the investor will receive $100.

22

CHAPTER III : OPTIONS ON EQUITY SECURITIESAn investor holds an XYZ binary stock option with an exercise price of $50 that pays a cash settlement
amount of $100 if the exercise settlement value of XYZ stock is below the exercise price. XYZ
announces a 2.5-for-1 stock split. The exercise price will be adjusted to equal $20 ($50 divided by 2.5).
If the exercise settlement value of XYZ stock at expiration is below $20, the investor will receive $100.
Exercise prices of binary stock options will generally be rounded to the nearest adjustment increment(or up in the event the adjusted price is equidistant between two adjustment increments).
Conversely, in the event of a reverse stock split or combination of shares, the exercise price will be
proportionately increased.
Distributions of property other than the underlying security may result in adjustments to the termsof binary stock options. For example, the exercise settlement value might be adjusted to include thevalue of the distributed property.
EXAMPLE: XYZ “spins off” its subsidiary ABC by distributing to its stockholders two shares in ABC
for each share of XYZ. The exercise settlement value of XYZ binary stock options may be adjusted toinclude the value of two shares of ABC as well as one share of XYZ.

Alternatively, the option might be adjusted by reducing its exercise price by an amount equal to thevalue of the property distributed with respect to a single share of the underlying security (in theexample above, the two shares of ABC).
As in the case of other stock options, adjustments to the terms of binary stock options may result
from events other than dividends, distributions, and splits. If all outstanding shares of an underlying
security are acquired in a merger or consolidation, binary stock options may be adjusted so thatthe cash, securities or other property received by stockholders with respect to a single share of that
underlying security becomes the underlying interest. Alternatively, OCC may determine to fix a value
for some or all of the non-cash property received. Where holders of an underlying security receive
only cash or OCC determines to fix a cash value for all non-cash property received, the aggregate pershare value received, as determined by OCC, will become the exercise settlement value, trading in theoptions will ordinarily cease, options that are out of the money will become worthless, the expiration
date will ordinarily be accelerated, and options that are in the money will be automatically exercised.
No adjustment in the fixed settlement amount will be made to reflect the accelerated expiration date.
As in the case of other stock options, any adjustment decision with respect to binary stock options
will be made by OCC as described above. OCC has discretion to make exceptions to the general rules
described above.

23

CHAPTER IV

Index Options
About Indexes
As referred to in this document, an index is a measure of the prices or other attributes of a groupof securities* or other interests. Indexes have been developed to cover a variety of interests, such as
stocks and other equity securities, debt securities and foreign currencies, and even to measure thecost of living. The following discussion relates to (i) indexes on equity securities (which are calledstock indexes in this document), (ii) indexes intended to measure the implied volatility, or therealized variance or volatility, of specified stock indexes or specified securities (which are collectively
called variability indexes in this document), (iii) strategy-based indexes, such as indexes measuring
the return of a particular strategy involving the component securities of a stock index and options onthat index, (iv) indexes intended to measure the stock price changes of the component securities ofunderlying indexes that result solely from the distribution of ordinary cash dividends, as calculated on
their respective ex-dividend dates (which are called dividend indexes in this document), (v) relative
performance indexes, which are a special type of strategy-based indexes that measure the relative
performance over a given time period of one index component to another index component, (vi)indexes on foreign currencies (which are called foreign currency indexes in this document), and(vii) options on the above indexes (including binary index options and range options).
Stock indexes are compiled and published by various sources, including securities markets. A stockindex may be designed to be representative of the stock market of a particular nation as a whole, ofsecurities traded in a particular market, of a broad market sector (e.g., industrials), or of a particularindustry (e.g., electronics). A stock index may be based on securities traded primarily in U.S. markets,securities traded primarily in a foreign market, or a combination of securities whose primary markets
are in various countries. A stock index may be based on the prices of all, or only a sample, of the
securities whose prices it is intended to represent. Like stock indexes, variability indexes, strategybased indexes, dividend indexes and relative performance indexes are securities indexes. However,variability indexes may measure the implied volatility of an index, using the premiums for series of
options on that index, or may measure the historical variance or volatility of the returns of an index
using daily returns over a certain period assuming a mean daily return of zero. Strategy-based indexes
measure the return of a particular strategy involving the component securities of an index andoptions on that index. Dividend indexes measure the stock price changes of the component securities
of underlying indexes that result solely from the distribution of ordinary cash dividends, as calculatedon their respective ex-dividend dates. Relative performance indexes measure the performance of
two index components relative to one another over a period of time. While a foreign currency index
is not an index of securities, options on foreign currency indexes trade on securities exchanges like
options on securities indexes. The foreign currency indexes discussed in this document are designed
to reflect the value of a single currency, often the U.S. dollar, against a basket of foreign currencies. In
this document options on variability indexes are referred to generically as variability options, options
on strategy-based indexes are referred to as strategy-based index options, options on dividend
indexes are referred to as dividend index options, options on relative performance indexes arereferred to as relative performance options, and options on foreign currency indexes are referred
to as foreign currency index options.
Information relating specifically to the various types of indexes appears below under the captions“Stock Indexes,” “Variability Indexes,” “Strategy-based Indexes,” “Dividend Indexes,” “Relative
Performance Indexes” and “Foreign Currency Indexes.”

Stock Indexes
A stock index, like a cost of living index, is ordinarily expressed in relation to a “base” establishedwhen the index was originated.
* Some indexes reflect values of companies, rather than securities, by taking into account both the prices of component securities and the number of those securities outstanding.

24

CHAPTER IV : INDEX OPTIONSEXAMPLE: On the starting or “base” date for a new value-weighted index, the total market valuesof the component securities (market price times number of shares outstanding) is $50 billion. The
publisher of the index will assign an arbitrary index level — say 100 — to that base value. If the total
market value of the component stocks increases by 2% the next day (i.e., to $51 billion), the index
level would rise to 102 (102% of the base level of 100).

The base may be adjusted from time to time to reflect such events as capitalization changes
affecting the constituent securities of the index (e.g., issuance of new shares) or to maintaincontinuity when securities are added to or dropped from the index. These adjustments are
generally designed so that the index level will change only as a result of price changes of
constituent securities during trading.
Securities may be dropped from an index because of events such as mergers and liquidations
or because a particular security is no longer thought to be representative of the types of stocks
constituting the index. Securities may also be added to an index from time to time. Adjustmentsin the base level of an index, additions and deletions of constituent securities, and similar changes
are within the discretion of the publisher of the index and will not ordinarily cause any adjustmentin the terms of outstanding index options. However, OCC has authority to make adjustments if the
publisher of the underlying index makes a change in the index’s composition or method of calculationthat in OCC’s determination, may cause significant discontinuity in the index level.
Different stock indexes are calculated in different ways. Accordingly, even where indexes are basedon identical securities, they may measure the relevant market differently because of differences inmethods of calculation. Often the market prices of the securities in the index group are “capitalization
weighted.” That is, in calculating the index value, the market price of each constituent security ismultiplied by the number of shares outstanding. Because of this method of calculation, changes in
the prices of the securities of larger corporations will generally have a greater influence on the levelof a capitalization weighted index than price changes affecting smaller corporations.
Other methods may be used to calculate stock indexes. For example, in one method known as“equal-dollar weighting,” the index is established by establishing an aggregate market value for every
constituent security of the index and then determining the number of shares of each security by
dividing such aggregate market value by the then current market price of the security. The base levelof the index is established by dividing the total market value of all constituent securities by a fixedindex divisor. Thereafter, the number of shares of the constituent securities and the index divisor
are adjusted at periodic intervals in order to have each constituent security continue to represent anapproximately equal dollar value in the index without distorting the level of the index.
Another method of calculation is simply to add up the prices of the securities in the index and divideby the number of securities in the index, disregarding numbers of shares outstanding. Anothermethod measures daily percentage movements of prices by averaging the percentage price changesof all securities included in the index.
Investors should keep in mind that a stock index can respond only to reported price movements in
its component securities. An index will therefore reflect the stock market as a whole, or particularmarket segments, only to the extent that the securities in the index are being traded, the prices of
those trades are being promptly reported, and the market prices of those securities, as measured by
the index, reflect price movements in the relevant markets. The index level will be affected by all of
the factors that may at the time affect prices in the relevant markets for the constituent securities of
the index, including, among other things, applicable laws, regulations and trading rules, the marketmaking and order processing systems of those markets, the liquidity and efficiency of those markets,and the prices and price behavior of futures contracts on that index or a related index.

25

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

Index options may be traded on underlying indexes designed to reflect the net asset values of
selected mutual funds in specified categories. For example, an underlying index may be designed toreflect the net asset value of a selected group of growth funds, or a selected group of growth andincome funds. These indexes are calculated and disseminated based on the reported net asset valuesof the mutual funds included in the index. Mutual funds typically report their net asset values only
once per day following the close of trading in the primary markets for the securities held in the funds’
investment portfolios. Mutual fund indexes are based on these closing values and are not updated
during the trading day. Mutual fund indexes as reported during the trading day will thus be based on
non-current information, not only because the funds’ portfolios may have changed since the previous
day’s close, but also because the values of the funds’ portfolio securities during the trading day mayvary from their values at the previous day’s close. Therefore, reported fund index values should not
be relied upon as indicative of the current values of the mutual funds included in the indexes. In
this respect, mutual fund indexes are comparable to other indexes that are not updated during the
trading day, including certain foreign stock indexes. These other indexes are not updated because
their component stocks may not be traded in their primary home country markets during all orpart of the options trading day.

Dividend Indexes
Dividend indexes measure the stock price changes of the component securities of underlying
indexes that result solely from the distribution of ordinary cash dividends, as calculated on theirrespective ex-dividend dates. As of the date of this document, dividend indexes on which options
are approved to be traded are based on the accumulated “ex-dividend amounts” reflecting ordinary
cash dividends for the component securities over a specified accrual period. Investors should notethat determinations by the reporting authority for a dividend index as to whether a cash dividend
is “ordinary” and therefore reflected in the index may be made using rules other than those relating
to adjustments of stock options and described in Chapter III under “Features of Stock Options.” At
the end of each accrual period, the value of a dividend index is reset to zero. The values of dividend
indexes are typically published once per trading day, and these values could be affected by anissuer’s determination to pay stock dividends in lieu of cash dividends or to forego payment of cash
dividends. An “ex-dividend amount” is the amount by which the market price of a stock decreaseson the ex-dividend date to reflect the dividend that will be received by holders of the stock
immediately prior to the ex-dividend date. The “ex-dividend amount” is calculated by the reporting
authority for the index, and information as to the method of calculation is available from the listing
options market. Investors must understand the method used to calculate dividend indexes in orderto understand the relationship between current dividend index values and the prices of dividend
index options.

Variability Indexes
Variability indexes, and investment strategies involving the use of variability options, areinherently complex. You should be certain that you understand the method of calculation andsignificance of any variability index and the uses for which variability options based on thatindex are suited before buying or selling the options.
Economic, political, social and other events affecting the level of the reference index or the price of thereference security may also affect the variability of the reference index or reference security. Variability
indexes based on equity securities have historically tended to move inversely to their reference
indexes, since variability, whether in the form of variance or volatility, tends to be associated withturmoil in the stock markets and turmoil tends to be associated with downward moves in the stock
market. But this relationship does not always hold true and, indeed, a variability index may be rising
at a time when its reference index or the price of its reference security is also rising.

26

CHAPTER IV : INDEX OPTIONS

As with other index options, a call variability option will be in the money at exercise if the exercise
settlement value of the underlying index is above the exercise price of the option, and a put variability
option will be in the money at exercise if the exercise settlement value of the underlying index is
below the exercise price of the option. Whether the variability option is in the money is determined inrelation only to the value of the underlying variability index, and not in relation to the reference index
or reference security.
The information set forth below under the caption “Features of Index Options” is generally applicableto variability options. However, the method of determining the exercise settlement value forcertain variability options may differ from those for other index options, and you should read theinformation below relating to the particular types of variability options you wish to trade. Note alsothat variability options may have expiration dates that are different from those of other index
options. You should be sure that you know the expiration date for each variability option you wish
to buy or write.
As of the date of this document, options are approved for trading on three different types ofvariability indexes representing three different ways of measuring variability. A realized varianceindex represents the variability of returns of a specified reference index or reference security (ineither case, a “reference interest”) over a specified period of time relative to an average (mean) daily
return of zero. The realized volatility of the same index over the same time period, also referred
to as the standard deviation, is equal to the square root of the realized variance. Both of thesemeasures are calculated from historical index values over the relevant period of time. An implied
volatility index is a measure of the predicted future variability of the reference interest over a
specified future time period. It measures the predicted standard deviation of the daily returns of thereference interest measured over the specified future time period. An implied volatility index reflects
predictions about the future volatility of the reference interest as those predictions are implied byreported current premium values for options on the reference interest. The realized volatility of thereference interest may not conform to those predictions.
There are various methods of estimating implied volatility, and different methods may provide
different estimates. Under the method that is used for volatility options that are traded at the dateof this document, implied volatility index values are calculated using premium values of certain seriesof options on the reference interest in expiration months or weeks that are selected and weighted toyield a measure of the volatility of the reference interest over a specified future time period. For somevolatility options, the premium values used in the calculation are for out-of-the-money options series;
for other volatility options, they are for hypothetical at-the-money options series. For example, animplied volatility index that is calculated using one of these methods and that is designed to provide
a prediction of volatility over 30 calendar days is based on premium values of at-the-money options
series on the reference interest expiring in the two nearest months with at least 7 calendar days left
to expiration. Implied volatility index values will be affected by any factor that affects the component
options series of the index, including, among other things, applicable laws, regulations and trading
rules, the market-making and order processing systems of the markets on which the options aretraded, and the liquidity and efficiency of those markets.
Implied volatility options that are described in this document are European-style and “A.M.-settled,”
which means that the exercise settlement values are derived from opening values of the component
put and call options or from the values of put and call options calculated during one or more
periods of time at or near the opening of trading. For one type of implied volatility option, theexercise settlement value is calculated from actual opening premium prices of the relevant
series of options on the reference interest or, if the option has no opening trades, the mid-point
between the bid and offer premium quotations. For another type of implied volatility option,
the exercise settlement value is calculated from the mid-point of the bid and offer premium
quotations for the relevant series of options on the reference interest as determined at the
opening of trading. For a third type of implied volatility option, the exercise settlement value
is calculated from actual premium prices of the relevant series of options on the reference27

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONSinterest during a specified period or periods of time commencing at or near the opening oftrading or, if the option has no trades during the specified observation period or periods,
from the mid-point of the bid and offer premium quotation during the particular observation
period for that series. For all these types of implied volatility options, all other index values for eachof these implied volatility indexes are calculated using the mid-points of the bid and offer premium
quotations of and/or actual trade prices of the options series that comprise the index. (Where theseindex values are based on quotations and/or actual trade prices they are sometimes referred to as“indicative values.”)
Because different values may be used in calculating the indicative values and exercise settlement
values for implied volatility options, there is a risk that there may be a divergence between theexercise settlement value for implied volatility options and an indicative value calculated at the
opening on the date on which the exercise settlement value is being determined. This risk is
described further in Chapter X of this document, under the heading “Special Risks of Index Options.”
Additional information regarding the method used to calculate the values of a particular implied
volatility index is available from the market on which options on that index are traded.
Investors should keep in mind that indicative values of an implied volatility index can reflect changes
in the implied volatility of the reference interest only to the extent that quotations of the component
options of the index are current. Indicative values for an implied volatility index may be disseminated,
and implied volatility options may be traded, during times when the reference security or one ormore component securities in the reference index are not trading, or when the quotations for thereference security or one or more of the options series comprising the implied volatility index are notcurrent. Similarly, an exercise settlement value for an implied volatility index may be calculated even
if one or more component securities in the reference index are not trading. In any of these cases, anindicative value or exercise settlement value will be based on non-current information. The quality of
the information reflected in the values of an implied volatility index should be evaluated in light of thedepth and liquidity of the markets for the securities in the reference index and the options that are
the components of the index.
The realized variability indexes underlying variability options approved for trading as of the date ofthis document measure the actual volatility or variance, as the case may be, of the reference index fora fixed period ending on the last trading day before the expiration date for the variability option. As
of December 2009, indicative values for a realized variability index are published once per trading day
during the fixed period, but values published early in the period, which are based on a small numberof observations, may vary substantially from the exercise settlement value. The exercise settlement
amount for a realized variability option is equal to the difference between the exercise settlement
value and the exercise price of the option, times a multiplier.
Realized variability options that are described in this document are European-style and “A.M.-settled.”
The initial and final values of a reference index for purposes of calculating the exercise settlement
value for realized variability options described in this document are ordinarily calculated from theactual opening prices of the component securities of the reference index in their primary market. If a
component security does not open for trading, the last reported price in the primary market may
be used. OCC’s rules provide for other methods of determining the exercise settlement value of areference index in extraordinary circumstances. All other values for realized variability indexes arecalculated from the published closing value of the reference index.

Strategy-Based Indexes
Strategy-based indexes are complex, and their calculations may involve the use of multiple
variables, including the values of equity securities and options on those securities. Strategies
based on options on these indexes, referred to as “strategy-based index options,” are also
complex. Investors should be certain that they understand the method of calculation and28

CHAPTER IV : INDEX OPTIONS

significance of any strategy-based index and the uses for which strategy-based index options
are suited before buying or selling the options.
Strategy-based indexes measure the returns from investment strategies involving the purchaseand sale of various securities. All of the securities purchased and sold pursuant to the strategy are
deemed to be the component securities of the strategy-based index. As of December 2009, the only
strategy-based index on which options are approved to be traded is a buy-write index measuring thereturn on a hypothetical “buy-write” strategy involving the simultaneous writing of call options on astock index and purchase of the component securities of that index. Under the hypothetical strategy,
a succession of at the money index call options with one month to expiration are assumed to be
written, and the proceeds (i.e., the premiums received) from writing the options are assumed to beinvested in a weighted basket of the component securities that mirrors the index. Dividends received
from ownership of the component securities of the index are similarly assumed to be reinvested
in the basket of securities. The options are deemed held until expiration, and new call options are
assumed to be written on the business day immediately after the settlement value is determined. All
options written under the buy-write strategy are deemed to have been assigned an exercise noticeon the expiration date if in the money on that date, and to have expired without value if out of themoney on the expiration date. The buy-write index measures the cumulative gross rate of returnof the strategy since the inception of the index. The index will therefore rise during periods when
the strategy is profitable and decline when it is unprofitable. The following example illustrates thecalculation of the buy-write index.
EXAMPLE: Assume that the buy-write index has a value of 800 on January 1. The return from thebuy-write strategy, taking into account the returns of the component securities of the stock index andof the options assumed to be written on the index, is 0.5% and 1% on January 2 and 3, respectively.
The index value at the end of a given trading day is equal to the previous closing value of the index
multiplied by one plus the rate of return for that trading day. In this example, the value of the buywrite index at the close of trading on January 3 would be 812.04 (800 x 1.005 x 1.01). Assume
that the return of the buy-write strategy on January 4, again taking into account the returns of
the component securities of the stock index and of the options assumed written on that index, is anegative 0.7%. The value of the buy-write index at the close of trading on January 4 would be 806.36(812.04 x .993).

The calculation of the buy-write index, as in the case of any strategy-based index, requires the makingof assumptions about, for example, the timing of transactions involved with a particular strategy
and the prices received or paid for the securities traded (which are determined using market data
for specified time periods). The index is calculated throughout the trading day using reported values
for the reference index and reported premium values for the options as well as the value of any
ordinary dividends payable on the component securities. The calculation of the index assumes thattransactions can be continuously executed, i.e., that there will be no market disruptions, and may use
assumed prices equal to volume-weighted average prices, which may not be the same as the prices
an investor employing the strategy would pay or receive. Detailed information regarding calculationof the buy-write index is available from the exchange on which the options are traded. A special
opening value for the reference index is used in calculating the index on the date that a new option is
written to replace an expiring option, which is known as a roll date, and special procedures are usedon roll dates to reflect the hypothetical transactions that are assumed to take place on those dates.

Relative Performance Indexes
A relative performance index measures the relative performance — generally the relative total
return — of two index components. As of January 2012, the only relative performance options
approved for trading are options on indexes of which both index components are equity securities
29

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS(one or both of which could be non-leveraged fund shares). One of the components in each pair isreferred to as the target component and the second is referred to as the benchmark component.
The index is calculated by measuring the total return of the target component relative to thetotal return of the benchmark component. The index will rise as and to the extent that the target
component outperforms the benchmark component, and will fall as and to the extent that the
opposite occurs. The value of the relative performance index will be set to a base value, such as 100,
initially. The following example illustrates the calculation of a relative performance index.
EXAMPLE: Assume that a relative performance index has an initial base value of 100. If the total
return of the target component in one day is 10% and the total return of the benchmark component in
the one day period is 9%, the index value of the relative performance index at the end of the one day
period would equal 100 x (1 + 10%) / (1 + 9%) = 100.92. If the total return of the target component
in the one day period is 9% and the total return of the benchmark component in the one day period is10%, the index value of the relative performance index at the end of the one day period would equal
100 x (1 + 9%) / (1 + 10%) = 99.09.

The example above illustrates only a scenario where the total return assumed is for a one day period.
Other periods would yield different results. Market participants should contact the exchange on whichthese options are traded for a more complete description of the index calculation methodology.
Investors should be certain that they understand the method of calculation of any relative
performance index and the uses for which relative performance options are suited before
buying or selling such options. Different relative performance indexes may measure relative
performance in different ways. Investors should contact the listing options market for
information on the method of calculation of a particular relative performance index.
In the event that one of the index components in an underlying relative performance index iseliminated as the result of a cash-out merger or other event, the reporting authority may cease
to publish the value of the index. In that case, the exercise settlement value of the options would
become fixed based upon the last published value for the index, and the market on which theoptions are traded may determine to accelerate the expiration date for the options (and, in the caseof European-style options, their exercisability). The expiration date will ordinarily be accelerated tofall on the next standard expiration date for options as specified in OCC’s rules or on such other dateas OCC establishes in consultation with the market on which the options are traded. All options
that are not in the money will become worthless and all that are in the money will have no timevalue. Holders of an in-the-money option whose expiration date is accelerated must be prepared toexercise that option prior to the accelerated exercise cut-off time in order to prevent the option fromexpiring unexercised. Writers of European-style options whose expiration date is subject to being
accelerated bear the risk that, in the event of such an acceleration, they may be assigned an exercise
notice and be required to perform their obligations as writers prior to the original expiration date. As
with any other option for which the expiration date is accelerated, no adjustment would be made tocompensate for the accelerated expiration date of a relative performance option.

Foreign Currency Indexes
Foreign currency indexes are designed to reflect the value of one currency, often the U.S. dollar,
against a basket of foreign currencies. Foreign currency indexes are calculated using exchange rates,i.e., the prices of currencies in terms of other currencies. An exchange rate is often expressed as acurrency pair (e.g., the price of euros in terms of U.S. dollars is expressed as EUR/USD). In a currency
pair, the first currency is called the base currency and the second currency is called the quotecurrency. The exchange rate for a currency pair is how much of the quote currency is needed topurchase one unit of the base currency. Different foreign currency indexes are calculated in different
30CHAPTER IV : INDEX OPTIONS

ways. Accordingly, there may be situations in which foreign currency indexes are based on thesame component currency pairs but rely on different sources of exchange rate data or measure therelevant exchange rates differently because of differences in methods of calculation or weighting. A
foreign currency index may be designed so that each component currency pair is weighted equally or
weighted to conform to another static or dynamic benchmark as determined by the index provider.
A foreign currency index, like a stock index, is ordinarily expressed in relation to a “base” establishedwhen the index was originated.
EXAMPLE: On the starting or “base” date of a new foreign currency index representing a basket
of four currency pairs measured against the U.S. dollar  — e.g., the price of euros in terms of
U.S. dollars is expressed as EUR/USD, the price of British Pounds in terms of U.S. dollars is expressed
as GBP/USD, the price of U.S. dollars in terms of Japanese yen is expressed as USD/JPY and the priceof Australian dollars in terms of U.S. dollars is expressed as AUD/USD  — the index may be set tobe equally weighted so that each component currency pair has equal influence on the overall index
value. This may be accomplished by assuming a $10,000 position in each component currency pair.
The index value would be calculated by multiplying (or dividing, in the case of a USD/JPY currencypair) each currency pair position by the spot exchange rate for the currency pair. The value, indollars, of each foreign currency would be deducted from $20,000. This method is used in order toeffectively invert the value of the currency pair, so that the index value will increase when the valueof the U.S. dollar increases and decrease when the value of the U.S. dollar decreases. The sum of theresulting differences would be divided by the “divisor.” The divisor is a number that is fixed on thebase date  — in this example, four — selected so that the index value on the base date equals 10,000.
Accordingly, if the value of the U.S. dollar against the Euro increases by 2% the next day (i.e., thevalue of the EUR/USD position decreases to $9,800 from $10,000, which subtracted from $20,000
equals $10,200), while the GBP/USD, USD/JPY and AUD/USD exchange rates remained the same,the index level would rise to 10,050 ((10,200 + 10,000 + 10,000 + 10,000)/4).

The base of the foreign currency index may be adjusted from time to time if certain “rebalancing
events” occur, as determined by the index provider. An index might be structured so that it is
not rebalanced unless the exchange rate for one of the component currency pairs drops by morethan 90% from its original base or upon the occurrence of extraordinary events in the global
currency markets. Adjustments in the base level of an index or other similar changes are within thediscretion of the publisher of the index and will not ordinarily cause any adjustment in the terms ofoutstanding index options. However, OCC has authority to make adjustments if the publisher of theunderlying index makes a change in the index’s composition or method of calculation that, in OCC’s
determination, may cause significant discontinuity in the index level.

Information Concerning Underlying Indexes
Certain trading strategies involving purchases and sales of index options, index futures, options on
index futures or portfolios of certain of the securities in an index can affect the value of the index,
the prices of the index futures, and, therefore, the prices of index options. These transactions andthe resulting impact may occur at any time — and may accompany significant changes in the prices
or volatilities of the stock and derivative markets — including at or shortly before an expiration. For
example, traders holding positions in expiring index options or futures contracts hedged by positions
in securities included in the index may attempt to liquidate their securities positions at or near thetime for determining the final exercise settlement value of the options or futures contracts. The
resulting orders to liquidate these securities might result in significant changes in the level of theindex. Index options investors should be aware of the potential impact that these trading strategies
can have on index levels at or near expiration, and the possibility that the values of index option
positions will be affected accordingly.

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CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

Readers who intend to trade index options should familiarize themselves with the basic features of
the underlying indexes, including the general methods of calculation. Readers who are attempting tofollow a precise and sophisticated strategy involving index options may wish to inform themselves
about the exact method for calculating each index involved. Information regarding the method of
calculation of any index on which options are traded, including information concerning the standards
used in adjusting the index, adding or deleting securities, and making similar changes, is generally
available from the options market where the options are traded.
The value level of every index underlying an option — including the exercise settlement
value — is the value of the index as reported by the reporting authority designated by the
options market where the option is traded as the official source for determining that index’s
value. Unless OCC directs otherwise, every value as initially reported by the reporting authority
is conclusively presumed to be accurate and deemed to be final for the purpose of calculating
the cash settlement amount, or, in the case of a binary index option, whether the option is
automatically exercised and returns a cash settlement amount. This is true even if the value
is subsequently revised or determined to have been inaccurate.
With some exceptions, such as those noted above with regard to mutual fund indexes, certain foreign
stock indexes, realized variance and realized volatility indexes, and dividend indexes, the values ofindexes are ordinarily updated throughout the trading day. Investors may determine current index
levels from their brokerage firms. However, an index option may be traded in the options markets at
a time when some, or even a substantial portion, of the components of the underlying index are not
trading or when there is a lag in the reporting of prices in some or all of the components. Information
regarding the method of calculation of any index on which options are traded, including information
concerning the standards used in adjusting the index, adding or deleting components of the index,
and making similar changes, and on any modification of the index in determining the underlying
value for the options, is generally available from the options market where the options are traded.

Features of Index Options
All index options that are traded on the date of this document are cash-settled. Cash-settled index
options do not relate to a particular number of shares. Rather, the “size” of a cash-settled index
option is determined by the multiplier of the option. The “size” of a range option is determined by its
multiplier and maximum range exercise value, and is equal to the maximum cash settlement amount(i.e., the maximum range exercise value times the multiplier). In the case of a binary index option,
the “size” of the contract is simply its fixed cash settlement amount, which for certain binary index
options is defined as the product of a fixed settlement value times a multiplier.
The underlying interest for an index option may be a fraction or multiple of a particular index. An
option on a fraction or multiple of a particular index is equivalent to an option on the full value of theindex, but with a different contract size. Investors in index options should be aware that the underlying
interest for an index option may not be the full value of a published index with which they are familiar.
The exercise prices and premiums of the index options that are traded at the date of this document
are expressed in U.S. dollars. Subject to regulatory approval, trading in index options whose exercise
prices or premiums are expressed in a foreign currency may be introduced in the future. The total
premium and total exercise price for a single index option (other than a binary index option or a range
option) are, respectively, the stated premium and exercise price multiplied by the multiplier.

32

CHAPTER IV : INDEX OPTIONSEXAMPLE: An investor purchases a December 100 index call at $2.15. The multiplier for that option
is 100. The aggregate dollar amount of the premium is $215.00 ($2.15 times 100 = $215.00). Had
the options market used a multiplier of 200, a premium of $2.15 would have meant an aggregate
premium of $430.00. Had the options market used a multiplier of 1, a premium of $2.15 would
have meant an aggregate premium of $2.15.

The exercise settlement values of options on securities indexes are determined by their reporting
authorities in a variety of ways. The exercise settlement values of some index options are based on
the reported level of the underlying index derived from the last reported prices of the component
securities of the index at the closing on the day of exercise. The exercise settlement values ofother options are based on the reported level of the index derived from the opening prices of thecomponent securities on the day of exercise. Other means for determining the exercise settlement
values of some index options series have been, and may continue to be, established. For example,
the exercise settlement values for options on an index of foreign securities may be fixed in relation
to a value fixed by a foreign exchange. Additionally, some implied volatility options calculate theexercise settlement value by utilizing the mid-point of the bid and offering premium quotations at
the opening of trading of the relevant series of the put and call options on the reference interest. If
an option is exercised on a day that is not scheduled as a trading day for the component securitiesof the index, the exercise settlement value is based on the reported level of the index derived fromthe opening or closing prices (depending on the options series) of the component securities on thelast prior day that is scheduled as a trading day. If a particular component security does not open fortrading on the day the exercise settlement value is determined, a substitute value, such as the lastreported price of that component security, is used.

Adjustment of Index Options
No adjustments will ordinarily be made in the terms of index option contracts in the event thatindex components are added to or deleted from the underlying index or reference index or when therelative weight of one or more such index components has changed. However, if OCC determines thatany such addition, deletion, or change causes significant discontinuity in the level of the underlying
index or reference index, OCC may adjust the terms of the affected index option contracts byadjusting the index multiplier and/or exercise price with respect to such contracts or by taking
such other action as OCC deems fair to both the holders and writers of such contracts.
If the option market on which an option series is traded should increase or decrease the index
multiplier for any index option contract, or the reporting authority should change the method of
calculation of an underlying index or reference index so as to create a discontinuity or change in thelevel of the index that does not reflect a change in the prices or values of the index components, or a
successor index (as defined in the paragraph below) should be substituted for an underlying index orreference index, OCC may make such adjustments in the number of outstanding affected options or
the exercise prices of such options or such other adjustments, if any, as OCC deems fair to both theholders and the writers of such options.
OCC may substitute another index (a successor index) for an underlying index or reference index in
the event OCC determines that: (i) publication of the underlying index or reference index has been
discontinued; (ii) the underlying index or reference index has been replaced by another index; or(iii) the composition or method of calculation of an underlying index or reference index is so materiallychanged since its selection as an underlying index or reference index that it is deemed to be adifferent index. A successor index will be reasonably comparable to the original underlying index
or reference index for which it substitutes. An index may be created specifically for the purpose of
becoming a successor index.

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CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

OCC’s determinations shall be conclusive, binding on all investors, and not subject to review.

Investors should be aware that the exercise settlement value of an option on a security index that isderived from the opening prices of the component securities of the index may not be reported forseveral hours following the opening of trading in those securities. A number of updated index levels
may be reported at and after the opening before the exercise settlement value is reported, and there
could be a substantial divergence between those reported index levels and the reported exercise
settlement value.

The principal risks of holders and writers of index options are discussed in Chapter X. Readersinterested in buying or writing index options should carefully read that chapter, particularly the
discussions under the headings “Risks of Option Holders,” “Risks of Option Writers,” “Other Risks,”and “Special Risks of Index Options.” Readers interested in buying or writing options on foreign
currency indexes should additionally read the discussion under the heading “Special Risks ofForeign Currency Options,” which discusses the risks of foreign currency options, many of which
are applicable to foreign currency index options.

34

CHAPTER V

Debt Options andCredit Default Options
Three kinds of debt options have been approved for trading as of May 2010. Two of these kinds
are sometimes referred to as price-based options. Price-based options are options which give
their holders the right either to purchase or sell a specified underlying debt security or to receive acash settlement payment based on the value of an underlying debt security (depending on whether
the options are physical delivery or cash-settled options). Options on securities issued by the U.S.
Treasury are one kind of price-based debt options. Options on index-linked securities are a second
kind of price-based debt options. An “index-linked security” is a debt security that trades on one
or more exchanges similarly to an equity security, and that provides a cash return to its ownerbased on the performance of a “reference asset” which may, for example, consist of a securities orcommodities index, a futures index, a physical commodity, a foreign currency, another debt security,
or some combination of the above. The term “index” in the context of an index-linked security has abroader meaning than that set forth in Chapter IV since, in the context of an index-linked security, theterm is a synonym for the term “reference asset” and is not limited to securities indexes.
A third kind of debt options, called yield-based options, are options that are cash-settled based on
the difference between the exercise price and the value of an underlying yield. As of May 2010, allyield-based options that have been approved for trading are based on the yields of U.S. Treasury
securities. The distinctions between price-based and yield-based options are fundamental andshould be understood by readers interested in investing in debt options.
A fourth kind of options, called credit default options, are also described in this Chapter.
Credit default options are cash-settled options that are related to the creditworthiness of
issuers or guarantors of debt securities, and are exercised upon confirmation of a credit event
affecting an underlying debt security or securities.
The principal risks of holders and writers of debt options and credit default options are discussed in
Chapter X. Readers interested in buying or writing debt options or credit default options should not
only read this chapter but should also carefully read Chapter X, particularly the discussions under
the headings “Risks of Option Holders,” “Risks of Option Writers,” “Other Risks,” “Special Risks of
Debt Options,” and “Special Risks of Credit Default Options.”

Rates, Yields and Prices of Debt Securities
To understand debt options, an investor should understand the relationship between the rates oryields, which are different ways of expressing return on debt securities, and prices of debt securities.
(Coupon interest rates of a debt security express return as a percentage of the principal amount(par value) of the security. Yields express return (or projected return) as a percentage of the amountinvested.) This relationship, simply stated, is that prices of debt securities move inversely to changes
in rates. Declining rates, whether on long-term bonds or money market instruments, will generally
cause prices of outstanding debt securities to increase. Conversely, rising rates across a particularmaturity spectrum will generally cause the prices of outstanding debt securities of that maturity
to decline.

35

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONSEXAMPLE: A 30-year Treasury bond pays interest at a 12% coupon rate. The only time prior tomaturity that investors will pay a price of 100 (that is, 100% of par value) for the bond is when theprevailing yield on such long-term Treasury bonds is exactly 12%. Should rates move higher to, say,
14% for such Treasury bonds, the price of an outstanding 12% bond would have to decline to about
86 in order for the bond to yield 14%. If rates on such bonds subsequently decline to 10%, the priceof the 12% bond could be expected to rise substantially above par, since it would yield 10% at a
price of 120.

Price-based call options become more valuable as the prices of the underlying debt securities
increase, and price-based puts become more valuable as the prices of the underlying debt
securities decline. The relationship between interest rate changes, prices, and the value of
price-based debt options can be expressed as follows:

Interest Rates (Yields)=

Prices=Interest Rates (Yields)=

Prices

=

Call
Put
Call
Put

In contrast, the exercise settlement value of a yield-based option is based on the difference between
the value of an underlying yield and the exercise price of the option. Since the underlying yields ofyield-based options will increase as interest rates increase, and vice-versa, it follows that yield-based
calls become more valuable as yields rise (i.e., as the prices of the debt securities from which theunderlying yield is derived decline), and puts become more valuable as yields decline (and pricesof such securities increase). These relationships can be expressed as follows:

Interest Rates (Yields)=

Prices=Interest Rates (Yields)=

Prices

=

Call
Put
Call
Put

Treasury Securities
The underlying debt securities of one kind of price-based options that have been approved for trading
as of May 2010, and the debt securities from which the underlying yields of yield-based options
are derived, are Treasury securities — e.g., 30-year Treasury bonds, 10-year Treasury notes, 5-year
Treasury notes and Treasury bills.
Treasury bonds and notes are direct obligations of the United States that pay a fixed rate of interest
semi-annually. Bonds are issued for maturities of more than ten years (although many issues arecallable prior to maturity). Notes are issued for maturities of one to ten years, and are non-callable.
New issues of bonds and notes are sold periodically by the Treasury, usually on an auction basis.
The auction price is established by bidding and may be above or below par value. Occasionally theTreasury will “reopen” an outstanding issue by auctioning additional principal amounts. Government

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CHAPTER V: DEBT OPTIONS AND CREDIT DEFAULT OPTIONS

securities dealers make secondary markets in virtually all outstanding issues, but market activity andliquidity tend to center on the most recently auctioned issues.
Unlike Treasury bonds and notes, Treasury bills do not pay interest. Instead, the Treasury sells bills at
a discount from their principal amount (par value). The investment return consists of the difference
between the discounted purchase price and the principal amount payable at maturity. Treasury bills
are issued in maturities of 13, 26 or 52 weeks.
Return on Treasury bills is commonly expressed in terms of a discount rate which represents anannualization (based on a 360-day year) of the percentage discount at which the bills are sold.
EXAMPLE: If a 13-week (91-day) Treasury bill with a principal amount of $1,000,000 is sold for$970,000, the actual discount would be $30,000 or 3% and the discount rate would be approximately
11.9% (360/91 times 3%).

Bills are auctioned by the Treasury on a regular basis, typically at weekly intervals for 13-week and26-week bills and every four weeks for 52-week bills. While dealers maintain secondary markets in all
outstanding Treasury bills, activity tends to center in the most recently auctioned issues. These arecommonly referred to as the “current” 13-week, 26-week, and “year” bills, respectively.

Yield-Based Options
The underlying yield of yield-based options is the annualized yield to maturity of the most recently
issued Treasury security of a designated maturity — e.g., 30-year, 10-year, 5-year — based upon
quotations or prices determined in accordance with a method specified by the options market on
which the option is traded. If such security is a Treasury bill, the underlying yield is the annualized
discount of the Treasury bill. (A discount represents a percentage of principal amount, rather than areturn on investment, and is therefore not a true yield.) Underlying yield is stated in terms of ayield indicator, which is the percentage yield multiplied by ten. For example, if the yield is basedon a Treasury bill having an annualized discount of 8.715%, the yield indicator would be 87.15.
The designated maturity of the Treasury security from which the underlying yield may be determined
is a standardized term of a yield-based option. The specific Treasury security having that maturity
is not fixed; rather, the underlying yield is derived from the outstanding security of the designatedmaturity that has the longest remaining life. Newly-auctioned securities having the longest remaining
life will replace old issues on the first trading day following their auction. Thus, the specific Treasury
security from which the underlying yield is derived may change during the life of the option. Because
yield-based options are European-style options, investors ordinarily will know prior to the time an
option is exercisable the specific Treasury security from which its exercise settlement value will
be determined. However, an option may often be traded for weeks or months before that specificsecurity is auctioned by the Treasury. During that time, trading in the option will be based upon theyield for the Treasury security of the designated maturity that then has the longest remaining life.
EXAMPLE: Yield-based options whose yield is based on 5-year Treasury notes expiring in December
are opened for trading on the business day following the September auction of 5-year notes. Tradingin the options will be based upon current yields for the September issue until the October auctionof 5-year notes. Beginning on the trading day following the October auction, trading will be based
upon current yields for the new 5-year notes. The same process will occur in November. If the options
expire on or after the auction date for 5-year notes in December, their exercise settlement value will
be based upon the then current yield for the December issue.

37

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONSCurrent bid and asked quotations for recently issued Treasury securities of particular maturities areavailable from normal market sources. Current yield indicator values based upon a sampling of bid
and asked quotations from primary dealers are disseminated at frequent intervals during the trading
day by an options reporting source. Exercise settlement values for yield-based options whose
underlying yields are derived from Treasury securities are based upon the spot yield for the security at
a designated time on the last trading day of the option, as announced by the Federal Reserve Bank of
New York.
The aggregate cash settlement amount that the assigned writer of a yield-based option is obligatedto pay the exercising option holder is the difference between the exercise price of the option andthe exercise settlement value of the underlying yield on the last trading day before expiration, as
reported by a designated reporting authority, multiplied by the multiplier for the option. Different
yield-based options may have different multipliers.
The exercise prices of yield-based options are expressed in terms of the yield indicator. For example,
an exercise price of 82.50 would represent a yield of 8.25%.
Each point of premium will correspond to .1% in yield. The dollar value of the premium for a single
yield-based option will equal the quoted premium multiplied by the dollar value of the option
multiplier. Thus, a premium of 2½ would equal a premium of $250 for an option having a multiplierof 100, or $5000 for an option having a multiplier of 2000.
The premiums of yield-based options are affected by the factors discussed under “Premium” in
Chapter II. Because yield-based options are European-style options and the underlying yield isdetermined from the most recently auctioned Treasury security with the longest remaining life, amajor factor affecting the pricing of such options is likely to be the estimates of market participantsof the anticipated yield at expiration, and current yield may be a less significant pricing factor.
Settlement of exercises of yield-based options takes place on the business day immediately following
the day of exercise. Investors may determine from their brokerage firms when and how settlement
amounts will be credited or debited to their brokerage accounts.
If the U.S. Department of the Treasury ceases to issue, or changes the terms or the schedule ofissuance of, Treasury securities on which underlying yields are based, OCC has discretion to adjust
the terms of the series by substituting other Treasury securities or to make such other adjustment
as OCC may determine. If the options market on which a particular yield-based option is tradedshould increase or decrease the multiplier for the option, OCC has discretion to adjust outstanding
options affected by the change by proportionately consolidating or subdividing them or by taking
other action.
Rules of the options market on which yield-based options are traded may permit or requiresuspension of trading in the options if current quotations for the last-auctioned Treasury securitiesof the designated maturity become unavailable or unreliable. For a discussion of the risks involved in
trading halts, see the discussion in Chapter X under “Other Risks.”

Options on Conventional Index–Linked Securities
Index-linked securities are debt securities that trade on exchanges similarly to equity securities.
Index-linked securities are issued by financial institutions such as banks and may take the formof trust certificates, units or some other interest. An index-linked security provides owners witha cash return based on the performance of a “reference asset” which may, for example, consistof a securities or commodities index, a futures index, a physical commodity, a foreign currency,
another debt security, or some combination of the above. References in this document to “units” ofunderlying index-linked securities include these various forms of interests. The term “index” in the38

CHAPTER V: DEBT OPTIONS AND CREDIT DEFAULT OPTIONS

context of an index-linked security has a broader meaning than that set forth in Chapter IV because,in the context of an index-linked security, the term is a synonym for the term “reference asset” and is
not limited to securities indexes. As of May 2010, options are approved to be traded on conventional
index-linked securities, but not on leveraged or inverse index-linked securities.
As a general rule, a single index-linked security option covers 100 units of the underlying security.
However, it is possible that the number of underlying units covered by an index-linked security
option would be adjusted after the option is issued if OCC determines, as described below, that it isappropriate to make such an adjustment.
The exercise prices of options on index-linked securities that are approved for trading as of May 2010
are stated in U.S. dollars per unit. As with a stock option, the exercise price of an index-linked security
option must be multiplied by the number of units underlying the option in order to determine theaggregate exercise price and aggregate premium of the option.
Index-linked securities may be redeemable at certain intervals at the option of the holder throughthe issuer at a price related to the applicable underlying reference asset, subject to a minimum
redemption increment and other conditions. Redemption of index-linked securities may affect themarket for the securities by reducing the quantity of securities available for trading. Index-linked
securities may return less than the principal originally invested, regardless of the solvency of theissuer of the securities.
An adjustment may be made to certain of the standardized terms of outstanding options on indexlinked securities if a particular event occurs that is determined by OCC to warrant the adjustment. As
is the case of other stock options, any adjustment decision with respect to options on index-linked
securities will be made by OCC.
As a general rule, if the issuer of a particular index-linked security calls the entire issue of the
security, the event will be treated like an event in which an underlying equity security is converted
into the right to receive a fixed amount of cash. If an event is treated in this manner, when the issue
of index-linked securities is called, outstanding options on that issue will be adjusted to require thedelivery upon exercise of a fixed amount of cash, and trading in the options will ordinarily cease. As
a result, after such an adjustment is made all options on that security that are not in the money
will become worthless and all that are in the money will have no time value. The expiration date of
the options will ordinarily be accelerated to fall on or shortly after the date on which the underlying
security is called. Holders of an in-the-money option whose expiration date is accelerated must be
prepared to exercise that option prior to the accelerated exercise cut-off time in order to prevent theoption from expiring unexercised. See the discussion in Chapter VIII under “How to Exercise.” Writersof options whose expiration date is subject to being accelerated bear the risk that, in the event ofsuch an acceleration, they may be assigned an exercise notice and be required to perform their
obligations as writers prior to the original expiration date. When the expiration date of an optionis accelerated, no adjustment will be made to compensate for the accelerated expiration date. As
with a stock option whose underlying security is converted into a right to receive a fixed amount ofcash, there is no assurance that the exercise settlement date for an accelerated index-linked security
option will coincide with the date on which the cash payment to the holders of the underlying
security becomes available from the issuer. Covered writers of an accelerated option may therefore
be required to pay the cash amount in respect of the option before they receive the cash paymenton the underlying security.
In contrast to a situation in which the issuer calls an entire issue of index-linked securities, as a
general rule no adjustment will be made to the terms of options on index-linked securities inthe event of a call of less than an entire issue of the securities. In addition, as a general rule, noadjustment will be made to the terms of options on index-linked securities for any interest paymenton the securities.

39

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONSAs is the case with equity options, OCC has discretion to make exceptions to the general rules
described above with respect to options on index-linked securities.

Credit Default Options and Credit Default Basket Options
Credit default options are based on debt securities of one or more issuers or guarantors other thanthe U.S. Treasury. A significant difference between such debt securities and Treasury securities is the
non-negligible risk that an issuer or guarantor of debt securities other than Treasury securities may
default on its obligations. For example, the issuer might not pay the full interest and face amountof the securities when due or might file for bankruptcy, thereby making it nearly certain that it will
not make timely payment of the full interest and face amount. Financial market participants call thiscredit risk. Credit risk is an important component of the value of most debt securities.
Credit default options relate to the credit risk presented by one or more specified debt securities,
called reference obligation(s), of one or more specified issuers or guarantors, each of which is calleda reference entity. The reference obligation(s) and each reference entity for a class of credit default
options are selected by the listing options market. When a credit default option is based on reference
obligation(s) of more than one issuer or guarantor, it is referred to as a credit default basket option.
There are further variations on credit default basket options as described below.
A credit default option is automatically exercised and pays a fixed cash settlement amount if a credit
event is confirmed for one or more reference obligations of a reference entity prior to expiration of
the option. The reference obligations of a reference entity may include all of the outstanding debt
securities constituting general obligations of the reference entity or direct claims on the reference
entities (excluding any non-recourse debt). A credit event may include a failure to make a payment
on a reference obligation and/or any other event(s) that the listing options market may specify
at the time a class of credit default options is listed. The specified credit event(s) will be definedin accordance with the terms of the reference obligation(s). However, not every event that might
constitute an event of default by the reference entity under the terms of the reference obligations will
necessarily be specified by the listing options market as a credit event. Investors should be certainthat they understand the various possible events that will or will not constitute credit events. The
determination of whether a particular event meets the criteria of a credit event, however defined, fora specific credit default option is within the sole discretion of the listing options market.
In order to result in automatic exercise of the option, a credit event must be confirmed to haveoccurred during the covered period (i.e., the period between the initial listing of the series of options
and the time specified by the options market as the last day of trading of the option series prior to
the expiration date). An event that would otherwise be deemed a credit event will not result in an
exercise of the option if it occurs either before or after this period. A series of credit default options
ordinarily does not expire until a specified number of business days following the end of the covered
period in order to provide the listing options market an opportunity to confirm whether or not acredit event occurred within the covered period. If an event otherwise meeting the definition of acredit event occurs after the end of the covered period but before the option expires, the option will
not be exercised and will expire worthless.
If the listing options market determines that a credit event has occurred within the covered period
for a class of credit default options, it will provide a credit event confirmation to OCC, and theoptions will be automatically exercised. Holders of the exercised options will receive, and writers
will be obligated to pay, the fixed cash settlement amount. If OCC does not receive a credit event
confirmation from the listing options market before expiration of a series of credit default options,the options will expire worthless.
Credit default options are binary options in that they have a specified, all-or-nothing cash settlement
amount. Credit default options, however, have additional unique characteristics. For example,
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CHAPTER V: DEBT OPTIONS AND CREDIT DEFAULT OPTIONS

credit default options have no exercise price and cannot be in the money and have no intrinsic
value. The discussion of these terms in Chapter I and/or Chapter II of the document is therefore
inapplicable to credit default options. In addition, a credit default option is automatically exercised
whenever a credit event occurs within the covered period. Credit default options are thus a uniquestyle of options and are neither American-style nor European-style.
A credit default basket option is similar to an aggregation of individual credit default options,each based on one or more reference obligations of a different reference entity. All of theoutstanding debt securities constituting general obligations of each reference entity or direct
claims on reference entities (excluding non-recourse debt) in the basket may be included in
the reference obligations.
There are two different kinds of credit default basket options. A single payout credit default
basket option is automatically exercised and pays a specified cash settlement amount upon theconfirmation of the first credit event to occur with respect to a reference obligation of any oneof the basket’s reference entities. It is exercised only once. Once exercised, the expiration of theoption will be accelerated to correspond to the exercise date. A multiple payout credit default
basket option automatically pays a specified cash settlement amount each time a credit event isconfirmed with respect to a reference obligation of any one of the reference entities during thecovered period. In the case of either single payout or multiple payout credit default basket options,the listing options market may specify a different cash settlement amount for different reference
entities or may specify the same cash settlement amount for each reference entity in the basket.
The percentage of the total cash settlement amount that is attributable to any individual reference
entity is referred to as its weight in the basket. Investors should note that the options markets on
which credit default basket options trade may determine “weight” according to their own specified
rules, and investors should contact the listing options market for information about how it
determines weight. In the case of a multiple payout credit default basket option, a cash settlement
amount will be paid only once with respect to any particular reference entity, after which time theaffected reference entity will be removed from the credit default basket.
Premiums for both credit default options and credit default basket options are expressed in points
and decimals. In order to obtain the aggregate premium for a single option, the quoted premium ismultiplied by a premium multiplier specified by the listing options market. 		

Adjustment of Credit Default Options
Adjustments may be made to the standardized terms of outstanding credit default options whencertain events occur, such as a succession event or a redemption event, both of which will bedefined by the listing options market in accordance with the terms of the reference obligations.
Adjustments of credit default options will be within the sole discretion of the listing options market.
Investors should familiarize themselves with the listing options market’s rules and procedures
governing credit default option adjustments. The listing option market’s rules governing
adjustments of outstanding options may be changed with regulatory approval, and the listing
options market may have authority to make such exceptions as it deems appropriate to its generaladjustment rules.
Redemption Event Adjustments. A redemption event occurs when reference obligations of areference entity are redeemed (or paid in full) by, or on behalf of, the issuer. In the case of all typesof credit default options, if only some of the reference obligations are redeemed, the option isordinarily adjusted such that the remaining reference obligations are the reference obligations forthe option and no other adjustment will ordinarily be made. If all of the reference obligations of areference entity are redeemed and there are other debt obligations of the reference entity that thelisting options market deems appropriate to specify as successor reference obligations, then they
will be substituted as the reference obligations. If, however, all of the reference obligations of a41

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

reference entity are redeemed and there are no other debt obligations of the reference entity thatthe listing options market deems appropriate to specify as successor reference obligations for thereference entity (a complete redemption), then the adjustment will depend upon whether or notthere are other reference entities for the options.
Adjustment of credit default options for a complete redemption. If there is a complete redemption affecting
a credit default option, the option will cease trading on the date that the redemption event isconfirmed by the listing options market. Expiration of the option will be accelerated to a specified
number of days following the confirmation date of the redemption, and the option will expire
unexercised if, prior to such expiration, no credit event is confirmed to have occurred prior to theeffective date of the redemption event.
EXAMPLE: Company XYZ is the reference entity for a credit default option contract and its 8% May 15,2022 bond issue is the only reference obligation. During the life of the option, Company XYZ redeems
the 8% May 15, 2022 bond issue and there are no other obligations of Company XYZ that the listing
options market deems to be suitable for specifying as successor reference obligations. The option willcease trading on the confirmation date, and its expiration date will be accelerated. If no credit event isconfirmed to have occurred within the covered period, the option will expire worthless.

Adjustment of credit default basket options for a complete redemption. In the case of a single or multiple
payout credit default basket option, if a complete redemption event occurs with respect to one of
the reference entities in the basket and no credit event is confirmed, pursuant to the rules of thelisting options market, to have occurred prior to the effective date of such redemption event, theoptions will be adjusted by removing the affected reference entity from the basket of reference
entities. When a reference entity is deleted from the basket of reference entities because ofa redemption event, the cash settlement amount of the option will be reduced by an amountreflecting the weight of the deleted reference entity in the basket. The relative weights of theother components in the basket will remain unchanged, although each will represent a proportionallylarger percentage of the adjusted cash settlement amount.
EXAMPLE: Company XYZ is one of ten reference entities for a class of multiple payout credit default
option contracts and its 8% May 15, 2022 bond issue is specified as its only reference obligation.
Company XYZ was assigned a weight of 15% when the credit default option was opened for trading.
During the life of the option, Company XYZ redeems the 8% May 15, 2022 bond issue. No reference
obligations remain and the listing options market determines that there are no other outstanding
debt obligations of the issuer suitable for specification as reference obligations. The basket component
will be removed from the credit default basket, and the cash settlement amount will be reducedby 15%.

Succession Event Adjustments. A succession event occurs when one or more new entities assume
one or more reference obligations of a reference entity or become the obligor with respect to any
obligation that is substituted for the original reference obligations. This may occur, for example, whena reference entity is merged into a new entity or spins off a part of its business into a new entity.
If, as the result of a succession event, more than one entity is the obligor of the original reference
obligations, or obligations that were substituted for the original reference obligations, all of thoseobligors, including, as the case may be, the original reference entity, are referred to as successor
reference entities.
Adjustment of credit default options after a succession event. Where a succession event results inassumption of all reference obligations by a single entity, the listing options market will ordinarily
adjust the option by substituting the entity that assumes the reference obligation(s) as the42CHAPTER V: DEBT OPTIONS AND CREDIT DEFAULT OPTIONS

new reference entity. Where a succession event results in more than one successor reference
entity, the credit default option may be adjusted by dividing it into two or more options.
EXAMPLE: Company XYZ is the reference entity for a credit default option contract, and its 8% May
15, 2022 bond issue is the only reference obligation. During the life of the option, Company XYZ
spins off Company LMN. Company XYZ remains the obligor with respect to 70% of the principal
amount of the original reference obligation. Company LMN becomes the obligor of a new reference
obligation that is issued to holders of the remaining 30% of the original reference obligation.
Company XYZ and LMN are identified by the listing options market as the successor entities.
Following the succession event, the credit default option based on Company XYZ is adjusted into two
separate credit default option contracts that specify Company XYZ and Company LMN as reference
entities. The cash settlement amount of the original credit default option and the premium multiplier
are allocated between the new credit default options in accordance with the 70⁄30 division of thereference obligation as specified by the listing options market.

Adjustment of credit default basket options after a succession event. When a succession event occurs withrespect to a reference entity that is included in a single payout or multiple payout credit default
basket option, the listing options market will ordinarily adjust the option by replacing the affectedreference entity with the successor entity or entities, and, if one or more new obligations are issued
to replace some or all of the existing reference obligations, the new obligations will be substituted
as the reference obligations. The listing options market will specify the weight of each new reference
entity, and the sum of the weights will equal the weight of the original reference entity.
EXAMPLE: Company XYZ is one of ten equally weighted reference entities for a multiple payout
default basket option and its 8% May 15, 2022 bond issue and its 8.5% September 1, 2030 bondissue are specified as its only reference obligations. During the life of the option, Company XYZ spins
off Company LMN. Company XYZ remains the obligor for the 2022 bond issue and LMN becomes
the obligor of a debt security issued to holder of the 2030 bond issue. The listing options market
adjusts the option by specifying XYZ and LMN as the successor reference entities. The reference
obligations are the original 2022 bond issue and the replacement for the 2030 bond issue. The listing
options market determines the appropriate basket weight for the successor reference entities is 7.5%
and 2.5%. The sum of the newly specified weights equals the 10% weight of the predecessor basket
reference entity (Company XYZ) replaced by the successor reference entities (Company XYZ andCompany LMN).

43

CHAPTER VI

Foreign Currency Options
Foreign currency options — sometimes referred to simply as currency options — are options topurchase or sell one currency at a price denominated in another currency. The price of one currency interms of another currency is known as an exchange rate. The exercise price of a currency option thus
represents an exchange rate. The currency in which the premium and exercise price are denominatedis referred to as the trading currency. The currency to be purchased or sold at the exercise price isthe underlying currency.
Certain of the foreign currency options discussed in this chapter, which are referred to as dollardenominated foreign currency options, are options to purchase or sell underlying foreign currencies
for U.S. dollars, and their exercise prices represent the exchange rates of the underlying foreign
currencies with respect to the U.S. dollar. Other options (which are referred to as cross-rate foreign
currency options or cross-rate options) that are discussed below under “Cross-Rate Foreign Currency
Options” are options to purchase or sell an underlying foreign currency at an exercise price thatis denominated in another foreign currency. The exercise price of a cross-rate option therefore
represents an exchange rate between two foreign currencies.
Although foreign currency options can be physical delivery options, they may also be cash-settled
foreign currency options. These options are discussed below under “Cash-Settled Foreign
Currency Options.”
The principal risks of holders and writers of foreign currency options are discussed in Chapter X.
Readers interested in buying or writing foreign currency options should not only read this chapter
but should also carefully read Chapter X, particularly the discussions under the headings “Risks of Option
Holders,” “Risks of Option Writers,” “Other Risks,” and “Special Risks of Foreign Currency Options.”

Market for Foreign Currencies
Understanding the risks inherent in foreign currency options requires familiarity with thecharacteristics of the markets for the underlying currencies. Readers will find extensive literatureon the subject, and this chapter can do no more than briefly summarize the most fundamental
characteristics of those markets as they pertain to foreign currency options.
Foreign exchange rates can be free floating or may be subject to a variety of formal or informal
governmental exchange rate control mechanisms. Exchange rates of most Western nations are
permitted to fluctuate in value relative to the U.S. dollar and to each other. It must be kept in mind,
however, that sovereign governments rarely voluntarily allow their currencies to float freely inresponse to economic forces. To the contrary, sovereign governments use a variety of techniques,
such as intervention by a country’s central bank or imposition of regulatory controls, to affect theexchange rates of their currencies. Thus, a special risk in trading options on foreign currencies is thatgovernmental actions might be instituted which could interfere with freely determined currency
valuation or even with movement of currencies across borders. These risks are specifically addressed
under “Special Risks of Foreign Currency Options” in Chapter X.
The market in foreign currencies exists in every large financial center in the world, and primarily
consists of trading by the world’s international banks. In contrast to the stock market, the market
for foreign currencies is decentralized, essentially free from government regulation designed toprotect investors (although, as noted above, governments may take various actions that affect theirown currencies and the markets on which they are traded), and extremely large. Trading is generally
conducted in units equivalent to $1 million to $5 million, and the market is not structured for tradingor delivery of small amounts of currency. While a “retail market” for foreign currencies is available
for tourists and others engaged in smaller transactions, the prices available in that market are only44CHAPTER VI: FOREIGN CURRENCY OPTIONS

generally related to prices in the “wholesale” interbank market, and it is unlikely that the prices in theretail market will be as favorable as the prices for transactions in large amounts of foreign currency.

Special Characteristics of Foreign Currency Options
Foreign currency options, like other options, provide opportunities for investment and pose risks toinvestors as a result of fluctuations in the value of the underlying interest. Just as certain options onequity securities are priced in relation to the price of the underlying security, dollar-denominatedforeign currency option prices will generally depend in significant part on the U.S. dollar value of theunderlying foreign currency. Similarly, the prices of cross-rate options will tend to depend on therelative values of the underlying currency and the trading currency.
The relationship between the value of an underlying foreign currency relative to the trading currency
and the prices of options on that underlying foreign currency can be summarized as follows:
1. If the value of an underlying foreign currency rises in relation to the trading currency, call premiums
will normally increase and put premiums decrease.
2. If the value of an underlying foreign currency decreases in relation to the trading currency, callpremiums will normally decrease and put premiums increase.
EXAMPLE: Assume a dollar-denominated call option gives its holder the right to purchase British
pounds at $1.35 each. At expiration, that option will have intrinsic value if the price of the British
pound is above $1.35. At the same time, it will have no intrinsic value if the price of the pound isequal to or below $1.35. The change in the price of British pounds may result from a change in thevalue of the U.S. dollar relative to all other currencies ( “strong” dollar, “weak” dollar), from a change
peculiar to the British pound (“strong” pound, “weak” pound), or from a combination of the two. In
any case, the final measure of the intrinsic value of the option will be the value of the British pound
relative to the U.S. dollar.

EXAMPLE: Assume a cross-rate call option gives its holder the right to purchase British pounds
at 2.50 euros each. At expiration, that option will have intrinsic value if the price of the British poundin euros is above euros 2.50. It will have no intrinsic value if the price is equal to or below
euros 2.50 at that time. Changes in the exchange rate between euros and British pounds may result
from changes in the value of euros relative to other currencies generally, from changes in the value ofthe British pound, or from a combination of the two. In any case, the intrinsic value of the option will
be determined by the value of the British pound relative to the euros, and not to the U.S. dollar or any
other currency. However, as is noted in the following section, fluctuations in the value of the trading
currency relative to other currencies may significantly affect investors who intend to convert theirgains or losses into one of those other currencies.

Readers should note that the various expiration dates for foreign currency options are different
from the expiration dates for options on other underlying interests. Readers should determine theexpiration date of each foreign currency option they wish to buy or write.

Special Features of Dollar-Denominated Foreign Currency Options
The amount of the foreign currency underlying each foreign currency option (i.e., the unit of trading)is specified by the options market on which the option is traded.

45

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

Non-Rate-Modified Cash-Settled Foreign Currency Options
Exercise prices for currently available dollar-denominated options on foreign currencies (other than
the rate-modified currency options, as described below) are stated in units of U.S. currency (e.g., centsor hundredths of a cent) per unit of foreign currency. In order to determine the total exercise price percontract, it is necessary to know the unit of U.S. currency used for options on the particular foreign
currency, and to multiply the stated exercise price by the unit of trading for such options. For example,
dollar-denominated British pound options may be expressed in U.S. cents per unit, and dollardenominated Japanese yen options may be expressed in hundredths of U.S. cents per unit.
EXAMPLE: A dollar-denominated put covering 31,250 British pounds with an exercise price of 130
would entitle the holder to sell the underlying pounds for an aggregate exercise price of $40,625($1.30 multiplied by 31,250).

EXAMPLE: A dollar-denominated call covering 6,250,000 Japanese yen with an exercise price of 94
would entitle the holder to buy the underlying yen for an aggregate exercise price of $58,750 ($.0094
multiplied by 6,250,000).

Readers should note, however, that certain exchanges may express exercise prices in otherunconventional ways. For example, an exercise price stated as $100.50 may in reality mean $1.0050.
Readers need to be sure they fully understand the various conventions used by the exchanges on
which they trade in quoting exercise prices.
Because the issuer of a particular foreign currency may unilaterally issue a new currency to replace its
existing currency or alter the exchange rate or exchange characteristics of its existing currency withrespect to other currencies, OCC has the discretion to adjust the terms of the options on such foreign
currency. Ordinarily, the terms of foreign currency options will not be adjusted to reflect a devaluation
or revaluation of a currency.
Premiums for currently available dollar-denominated options on foreign currencies (other than ratemodified currency options, as described below) are expressed in units of U.S. currency per unit offoreign currency. In order to calculate the cost of the option, it is necessary to know the unit of U.S.
currency used for options on the particular foreign currency.
EXAMPLE: If a dollar-denominated option covering 62,500 Swiss francs is purchased at a premiumof 0.81, the cost of the option will be $506.25 (0.81 cents, or $0.0081, times the unit of tradingof 62,500).

EXAMPLE: If a dollar-denominated option covering 6,250,000 Japanese yen is purchased at apremium of 0.42, the cost of the option will be $262.50 (0.0042 cents, or $0.000042, times the unitof trading of 6,250,000).

Readers should note, however, that certain exchanges may express premiums in otherunconventional ways. Readers need to be sure they fully understand the various conventions
used by the exchanges on which they trade in quoting premiums.

46

CHAPTER VI: FOREIGN CURRENCY OPTIONS

Settlement of exercises of physical delivery dollar-denominated and cross-rate options is significantly
different from settlement of exercises of other types of options. The following is a description of thesettlement procedures pertaining to such options.
Exercises are settled through the facilities of OCC. For this purpose, OCC may establish banking
arrangements permitting it to receive and deliver each underlying foreign currency in the countryof origin in satisfaction of option exercises. Clearing Members ordinarily deliver or receive foreign
currency on the fourth business day after exercise that is also a banking day for OCC’s correspondentbank in the country of origin. In the case of dollar-denominated options, cash settlement between
OCC and Clearing Members (i.e., payment or receipt of the net exercise price for each day’s exercises)
takes place in the United States or other locations approved by OCC.
For purposes of settlement between an investor and his brokerage firm, applicable rules requirea holder exercising a physical delivery put option and an assigned writer of a physical delivery call
option to arrange for the deposit of the requisite units of the underlying foreign currency into
a designated bank account in the country issuing that currency no later than the time by which
OCC requires delivery to it of foreign currency by its Clearing Members. Through this procedure,
investors ordinarily rely upon their brokerage firms to make settlement with them. However, OCC
has established procedures whereby Clearing Members may permit customers to make settlement
directly with an OCC correspondent bank. (At the date of this document, such procedures are not
yet available in the case of cross-rate options.) Investors should consult their brokerage firms withrespect to these procedures.
OCC has exercise settlement procedures under which OCC’s obligation to deliver or pay forunderlying foreign currencies in satisfaction of option exercises may be discharged by transferring
the foreign currency to be delivered, or the net exercise price for foreign currency to be received, toan OCC correspondent bank that is obligated to complete the settlement. Brokerage firms and theircustomers would then be relying on the correspondent bank to deliver or pay for the underlying
foreign currency.
If OCC should determine that foreign governmental restrictions or taxes would prevent theorderly settlement of delivery foreign currency option exercises or would result in undue
burdens on OCC or its Clearing Members, OCC has the authority to impose special exercise
settlement procedures. These could range from technical changes in delivery procedures to the
fixing of U.S. dollar settlement prices. If special exercise settlement procedures are imposed, investors
may determine the nature of such procedures from their brokers.

Cross-Rate Foreign Currency Options
As noted at the beginning of this chapter, a cross-rate foreign currency option is an option topurchase or sell a foreign currency at an exercise price that is denominated in another foreign
currency. An example of a cross-rate option is an option to purchase British pounds at an exercise
price denominated in Japanese yen — that is, the trading currency would be the Japanese yen and theunderlying currency would be the British pound. The exercise price would be expressed as a certain
number of yen per pound. Premiums for cross-rate options are denominated in the trading currency.
Thus, in the above example, premiums would be in yen.
The cross-rate options that have been approved for trading are physical delivery European-style
options. It is possible that other kinds of cross-rate options will be traded in the future.
Investors in cross-rate options should bear in mind that the magnitude and direction of any change
in the value of the underlying currency in relation to the trading currency may be quite different
from the magnitude and direction of any contemporaneous change in the value of either of thosecurrencies in relation to a third currency, such as the U.S. dollar. Thus, for example, the British pound
47

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

may appreciate in relation to the Japanese yen at the same time that the pound depreciates
in relation to the U.S. dollar. As discussed in Chapter X under “Special Risks of Foreign Currency
Options,” this is of particular significance to investors who intend to convert their profits orlosses on cross-rate options into U.S. dollars.
All of the previous discussion in this chapter relating to foreign currency options in general applies
equally to cross-rate options except to the extent that it is specifically limited to dollar-denominatedoptions. Certain special features of cross-rate options are discussed below.

Special Features of Cross-Rate Options
The amount of the foreign currency underlying each cross-rate option (i.e., the unit of trading) is
specified by the options market on which the option is traded.
The exercise price of a physical delivery cross-rate option is the price (denominated in the trading
currency) at which the underlying currency may be purchased or sold upon exercise of the option.
Exercise prices for cross-rate options are generally expressed in terms of units (or fractions of units)of the trading currency per unit of the underlying currency. Therefore, in order to determine the total
exercise price per contract, it is necessary to multiply the stated exercise price by the unit of tradingof the particular option.
EXAMPLE: The exercise prices of yen-denominated options covering underlying euros are expressedin yen per euros. Therefore, a put covering 1,000,000 euros with an exercise price of 93 Japaneseyen (JY) would entitle the holder to sell the underlying euros for an aggregate exercise price of
JY93,000,000 (JY93 multiplied by 1,000,000).

The discussion in this chapter of adjustments under the caption “Special Features of Dollar
Denominated Foreign Currency Options” is applicable also to cross-rate options, except that
adjustments in the terms of cross-rate options might be made to reflect events affecting the
trading currency as well as events affecting the underlying currency.
Premiums for currently available cross-rate options are expressed in units and decimals of the
trading currency per unit of the underlying currency.
EXAMPLE: If a yen-denominated option covering 500,000 British pounds is purchased at a premiumof 2.63, the cost of the option will be JY1,315,000 (JY2.63 times the unit of trading of 500,000).

Premium settlements of cross-rate options are effected in a trading currency other than U.S. dollars.
Similarly, in the event of exercise, the exercise price is paid in the trading currency. OCC hasestablished banking arrangements permitting it to receive and pay foreign currencies in the countryof origin for purposes of both premium and exercise settlement of cross-rate options between OCC
and its Clearing Members. Customers ordinarily settle with their brokerage firms, although OCC may
establish procedures whereby Clearing Members may permit customers to make exercise settlement
directly with an OCC correspondent bank. Each customer should consult his brokerage firm todetermine the procedures and time requirements for payment of foreign currencies on settlementof transactions in, and exercises of, cross-rate options.
If OCC should determine that foreign governmental restrictions or taxes or other events beyond
the control of OCC would prevent the orderly settlement of exercises of, or premium paymentswith respect to transactions in, cross-rate options or would result in undue burdens on OCC or its
48

CHAPTER VI: FOREIGN CURRENCY OPTIONS

Clearing Members, OCC has the authority to impose special settlement procedures. These could
range from technical changes in payment procedures for the trading currency or underlying foreign
currency to the fixing of U.S. dollar settlement prices payable in lieu of either currency. OCC also has
the authority to prohibit exercises of cross-rate options by holders who would be unable to meetthe settlement obligations resulting from the exercise. The potential effects of such a prohibition
are discussed in numbered section 5 under “Risks of Option Holders” in Chapter X. If special exercise
settlement procedures are imposed, investors may determine the nature of such procedures fromtheir brokerage firms.

Cash-Settled Foreign Currency Options
Some foreign currency options are dollar-denominated and cash-settled. The discussion above inthis chapter relating to dollar-denominated foreign currency options generally applies to cash-settled
foreign currency options except to the extent that such discussion specifically applies to physicaldelivery options.
The contract size of a cash-settled foreign currency option, like the size of other foreign currency
options, is expressed in terms of the amount of the underlying currency covered by the option.
EXAMPLE: If the exercise price of a cash-settled, dollar-denominated call option on euros is$1.2500 per euro, the exercise settlement value of the euro is determined to be $1.2607
and the option covers 10,000 euros, then the cash settlement amount for the option will be($1.2607 — $1.2500) x 10,000 = $107.00.

Cash-settled foreign currency options may be automatically exercised on the expiration date
if in the money or if in the money by a certain amount. See the discussion in Chapter VIII under“How to Exercise.”
The exercise settlement value for cash-settled foreign currency options will be based on an exchange
rate for the underlying foreign currency from a source selected by the market on which the options
trade as set forth in exchange rules. In the case of rate-modified foreign currency options, the options
market on which the options are traded would calculate and disseminate the underlying rate. In
either case this rate may be based on a rate announced by the Federal Reserve Bank of New York, bidand offer quotations from a sampling of participants in the interbank spot market for the underlying
foreign currency, the rate reported by a recognized pricing service, or some other widely-available
rate. The time as of which the exercise settlement value is calculated and the method of calculation
are determined by the options market on which the options are traded and may be changed by it at
any time. Any such change may be made applicable to options outstanding at the time of the change.
If OCC determines that the exercise settlement value of the underlying foreign currency for any
series of cash-settled foreign currency options is unreported, inaccurate, unreliable, unavailable, orinappropriate for purposes of calculating the cash settlement amount of such series, OCC has theauthority to suspend the settlement obligations of the exercising and assigned Clearing Members ofoptions of such series or to fix the cash settlement amount for exercised options of such series or to
do both. In the event of such a suspension, OCC will fix a new settlement date after OCC determinesthat the exercise settlement value is available or after OCC fixes the cash settlement amount.
If OCC determines to fix the cash settlement amount, it will act through a panel, comprised ofrepresentatives from each exchange on which the series without an exercise settlement value trades,that will use its judgment as to what is appropriate for the protection of investors and the public
interest. The panel may fix the cash settlement amount using the reported price or value of theunderlying foreign currency at such time, or representing a combination or average of prices or values
at such time or times, and reported in such manner, as the panel deems appropriate.
49

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

If a panel delays fixing a cash settlement amount for a series of cash-settled foreign currency options
past the last trading day before expiration of that series, normal expiration exercise procedures
will not apply to the affected series. Instead, exercise settlement will be postponed until the next
business day following the day when the panel fixes the cash settlement amount, and each longposition in the affected series will be treated as having been exercised if the cash settlement amountper contract for that series is $1.00 or more. If the cash settlement amount per contract is less than
$1.00, the option will be treated as having expired unexercised. As a result of these procedures,
holders of expiring cash-settled foreign currency options may not know whether their options havebeen exercised, and writers of such options may not know whether they have been assigned an
exercise, until after the expiration date. A panel’s determinations shall be conclusive, binding on
all investors, and not subject to review.

Rate-Modified Cash-Settled Foreign Currency Options
A rate-modified currency option is a type of foreign currency option that may be thought of as
an option on an underlying exchange rate between two currencies. The holder of a rate-modified
currency option receives in U.S. dollars the difference between the modified rate and the exercise
price multiplied by a multiplier (e.g., USD $100). In this respect, rate-modified currency options
resemble cash-settled index options where the index is an exchange rate between two currencies.
Exchange rates in the spot market are expressed as the number of units of one currency (currency 1)
required to purchase a single unit of a second currency (currency 2), and for each pairing of theworld’s major currencies, there is a convention as to which currency is currency 1 and which iscurrency 2. You should be aware that the exchange rates underlying rate-modified currency options
may or may not be stated in the same way that they are conventionally quoted in the spot market.
For example, exchange rates between the U.S. dollar and the euro are generally quoted as the numberof dollars required to purchase a single euro; but the rate underlying a rate-modified currency option
could be stated as the number of euros required to purchase a single dollar. You should therefore becertain that you understand the meaning of an underlying exchange rate.
In the case of rate-modified currency options, the underlying exchange rate may be multiplied
by a “rate-modifier,” such as 1, 10 or 100, to create an underlying value that more closely resembles
a conventional index value. Exercise prices would, of course, also be expressed in terms of therate-modified values.
EXAMPLE: A rate-modifier of 100 may be applied to the exchange rate between U.S. dollars (USD)and Swiss francs (CHF) in order to obtain the underlying exchange rate for USD/CHF rate-modified
currency options. If the current exchange rate in the USD/CHF spot market is 1.24 Swiss francs per
dollar, the current rate-modified exchange rate would be stated as (1.24 x 100) = 124. For example,
an exercise price of 1.25 Swiss francs per dollar would be expressed as 125.

As in the case of an index option, the premiums and exercise settlement values of rate-modified
currency options are determined using a multiplier, e.g., USD $100.
EXAMPLE: A rate-modified USD/CHF call option has an exercise price of 125. The USD/CHF exchange
rate in the spot market at the time the exercise settlement value is fixed is 1.27 Swiss francs per
dollar, meaning that the underlying rate-modified value is (1.27 x 100) = 127. The option is in themoney. The exercise settlement value of the option is (127 — 125) x $100 = $200.

Do not confuse the rate-modifier with the multiplier. They serve different purposes and may or may
not have the same numeric value.

50

CHAPTER VI: FOREIGN CURRENCY OPTIONSEXAMPLE: Assume that the exchange rate underlying a rate-modified call option on the exchange rate
between the U.S. dollar and the Mexican peso is stated as Mexican pesos per U.S. dollar (USD/MXN).
The rate-modifier could be 10 and the multiplier could be $100. If the exercise price of the option is
11 Mexican pesos per U.S. dollar, it is stated as 11 x 10 = 110. If the underlying exchange rate is
11.2 at the time the option is exercised, the exercise settlement value is (112-110) x $100 = $200.

Note that, as in the case of index options, the multiplier determines the cash value of an option thatis in the money by a specified amount. Like index options, and unlike other cash-settled currency
options, a rate-modified currency option has no unit of trading—it does not relate to a specified
quantity of an underlying currency.
The multiplier is also used in determining the total premium for a rate-modified currency option. For
example, if a premium is quoted as 0.50 and the multiplier is $100, the total premium for a single
option is $50.

51

CHAPTER VII

Flexibly Structured Options
Flexibly structured options, like the other options discussed in this document, are traded on the
U.S. options markets and are issued by OCC. However, unlike other options, the terms of flexibly structured
options are not all standardized. When a flexibly structured option is purchased and sold in an opening
transaction, the parties to the transaction have the flexibility, within limitations set forth in the rules ofthe options market on which the transaction occurs, to fix certain of the option’s terms. The terms of aflexibly structured option which may be fixed by the parties are called variable terms. The flexibility to
fix these variable terms is what makes flexibly structured options different from other options.
The principal risks of holders and writers of flexibly structured options are discussed in Chapter X.
Readers who are interested in buying or writing flexibly structured options should read not only thischapter but also all of Chapter X.
Because many of the terms of flexibly structured options are not standardized, it is less likely that
there will be an active secondary market in which holders and writers of such options will be able toclose out their positions by offsetting sales and purchases. See numbered section 1 under “Special
Risks of Flexibly Structured Options’ in Chapter X.
The trading procedures established by the options markets for transactions in flexibly structured
options differ from the procedures for transactions in other options. Readers desiring information
about the trading procedures of an options market for flexibly structured options may obtain that
information from that market.
The options markets may fix minimum size or minimum monetary values for transactions in flexibly
structured options. Flexibly structured options may be useful to sophisticated investors seeking tomanage particular portfolio and trading risks. However, as a result of these minimums, as well as
the special trading procedures and reduced likelihood of there being a secondary market, flexibly
structured options transactions are not suitable for investors who are not financially able to bear therisks of maintaining such minimum positions in flexibly structured options.

Special Features of Flexibly Structured Options
DESIGNATION OF TERMS — The parties to an opening transaction in flexibly structured options may
designate the option’s variable terms in accordance with the rules of the options market where
the transaction occurs. Included among the terms that an options market may identify as variable
terms are the specification and amount of the underlying interest, whether the transaction involves
a put, call or spread, the style of the option, the exercise price, the cap interval of a capped option,
the expiration date, the method for determining the exercise settlement value of a cash-settled
option that is exercised on the expiration date, the settlement currency of a cash-settled option, thepremium currency, and the trading currency of a foreign currency option. Flexibly structured options
are permitted in options that do not have the same exercise price, the same expiration date, thesame exercise style (e.g., American or European), and, with respect to index options only, the same
settlement style (e.g., A.M.-settled) as standardized options already trading on the same underlying
interest. Although flexibly structured equity options generally physically settle, an options market
may list for trading cash-settled flexibly structured options on certain fund shares that meet specified
criteria as defined in the rules of the options market. If trading is available in flexibly structured
options on certain fund shares that settle on a cash basis in accordance with exchange rules, it islikely that trading will also be available in options on the same underlying fund shares that settle
physically. In such a situation, the option that settles in cash will be separate and distinct fromthe option that physically settles on the same underlying fund shares. The settlement method forflexibly structured options is established prior to an option trade and does not change except thatthe settlement method for physically-settled flexibly structured options may change in the event of a52

CHAPTER VII: FLEXIBLY STRUCTURED OPTIONS

contract adjustment whereby the underlying fund shares of an option are converted entirely to cash.
Such contract adjustments are discussed in Chapter III.
Only those terms identified as variable terms by the options market where the opening transaction
occurs may be designated by the parties. All other terms are standardized in accordance with therules of OCC and the options market. The rules of an options market may impose limitations on thevariable terms which the parties may designate. For example, an options market may require thatthe expiration date of a flexibly structured option not fall within a specified period of time or thatthe life of the option not exceed a maximum permissible term. As another example, if the exercise
settlement value of an index option is based on a specified average, an options market may requirethat the average conform with the averaging parameters established by the market. In addition, theunderlying interest, the settlement currency, the premium currency and the trading currency, may bedesignated only from those available for flexibly structured options on the options market, and an
options market may require that the premium currency be the same as the settlement currency.
MINIMUM SIZE REQUIREMENTS — Every transaction in flexibly structured options must satisfy theminimum size or monetary value requirements of the options market where the transaction occurs.
The minimum requirements may be larger for an opening transaction in a series in which there is
no open interest than for other transactions (whether opening or closing) in that series. An options
market may also impose minimum size or monetary value requirements on exercises of flexibly
structured options. Information as to such minimums may be obtained from the options market
where the options are traded.
POSITION and EXERCISE LIMITS — The options markets may establish special position and exercise
limits for flexibly structured options. Such limits may differ from the limits applicable to otheroptions, although an options market may require that positions in certain flexibly structured options
be aggregated with positions in certain other options. Positions in cash-settled flexibly structured
options on certain fund shares that meet specified criteria as defined in options market rules will
be aggregated with all positions in physically-settled options, including standardized options on
the same underlying fund shares in accordance with options market rules. Information concerning
position and exercise limits of particular flexibly structured options may be obtained from the options
market where the options are traded or from brokerage firms.
TRADING PROCEDURES — The trading hours and trading procedures for flexibly structured options may

differ from the trading hours and procedures for other options. These special procedures may meanthat the market-making systems that are applicable to other options may not be applicable to flexibly
structured options, that there may not be continuous quotations for flexibly structured options, andthat quotations may be provided only in response to a specific request as the basis for trading withthe party making the request.

EXERCISES and SETTLEMENTS — In general, the exercise, assignment and settlement of flexibly
structured options occurs in the same manner as, and are subject to the same time frames andprocedures that are applicable to, other options of the same style and having the same underlying
interest. See Chapter VIII. However, unlike most other options, flexibly structured index options
that are in the money on the expiration date may be exercised automatically. In the future it may beprovided that flexibly structured index options will be exercised automatically only if they are in themoney by a specified amount.
FUNGIBILITY — In the event that a standardized option is listed for trading with the same exercise
price, the same expiration date, the same exercise style (e.g., American or European), and, withrespect to index options only, the same settlement style (e.g., A.M.-settled) as a flexibly structured
option already trading on the same underlying interest, all existing positions on the flexibly structured
option may be consolidated into the identical standardized option in accordance with options market
rules, thereby eliminating trading in the flexibly structured option. Investors should be aware thatwhen such a position consolidation occurs, existing positions under the flexibly structured option will53

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

move to the identical standardized option. For example, if a physically-settled standardized option islisted for trading with the same exercise price, the same expiration date, and the same exercise styleas an already trading physically-settled flexibly structured option, a consolidation will be processedas permitted under options market rules whereby all existing positions on the physically-settled
flexibly structured option will be moved so that the option positions are established in the identicalstandardized option and trade only in the standardized option market.
As stated previously, an options market may list for trading flexibly structured options on certain
fund shares that meet specified criteria as defined in the rules of the options market and that settle
in cash. Physically-settled flexibly structured options and cash-settled flexibly structured options on
the same underlying fund shares are not fungible with each other, and likewise, standardized options
on fund shares are not fungible with cash-settled flexibly structured options on the same underlying
fund shares. Consequently, investors should be certain they know and understand the settlement
method for the specific flexibly structured options that they intend to trade.
EXERCISE SETTLEMENT VALUE — The method of determining the exercise settlement value on the
expiration date of a flexibly structured index option is a variable term that is fixed by the parties intheir opening transaction. For example, the parties may specify that such exercise settlement value
will be determined with reference to opening prices of the constituent securities of the index, theirclosing prices, an average of their high and low prices, an average of opening and closing prices,
an average over a stated period of time, or another average that conforms with the parameters
established by the options market. However, under the OCC rules in effect at the date of thisdocument, the method of determining the exercise settlement value for an exercise that occurs ona day other than the expiration date is not a variable term. The exercise settlement value for such
exercises of flexibly structured index options will be the value derived from the closing prices of theconstituent securities on the day of exercise (as reported by the reporting authority), and the exercise
settlement value of other flexibly structured options will be determined in the same manner as it isdetermined for other options on the same underlying interest that are traded on the options market
where the opening transaction in the flexibly structured option occurred.
SETTLEMENT CURRENCY — The settlement currency may be a variable term to be fixed by the parties
out of those currencies specified by the options market on which the transaction occurs as being
available for flexibly structured options. The settlement currency may be the currency in which
the premium is payable. In addition, brokerage firms may require their customers to make margin
payments in the settlement currency.

If the settlement currency and premium currency are not U.S. dollars, settlement of premiums andexercises is generally made through the procedures and arrangements established by OCC for crossrate foreign currency options. See “Special Features of Cross-Rate Options” in Chapter VI.

54

CHAPTER VIII

Exercise and Settlement
Although most option holders and writers close out their options positions by an offsetting closing
transaction, investors should nonetheless be familiar with the rules and procedures applicable toexercise. Such an understanding can help an option holder determine whether exercise might bemore advantageous than an offsetting sale of the option. An option writer needs to understandexercise procedures because of the possibility of being assigned an exercise. Once an exercise of an
option has been assigned to an option writer — even though she may not yet have been notified of
the assignment — the writer can no longer effect a closing transaction in that option but must insteadpurchase or sell the underlying interest for the exercise price (or, in the case of a cash-settled option,
pay the cash settlement amount).

How to Exercise
The period during which an option is exercisable depends on the style of the option. This is discussed
under “Style of Option” in Chapter II.
In order to exercise most options traded at the date of this document, action must be taken by
the option holder prior to the expiration of the option. However, some options may be subject toautomatic exercise. For example, capped options are subject to automatic exercise if the automatic
exercise value of the underlying interest hits the cap price of the option, and certain other options(including binary options and flexibly structured index options) are subject to automatic exercise
as well. Binary options are subject to automatic exercise if the exercise settlement value of theunderlying interest at expiration meets the criteria for exercise specified by the listing options market.
Credit default options are subject to automatic exercise whenever a credit event occurs in accordancewith the description in Chapter V.
To exercise an option that is not subject to automatic exercise, the holder must direct his brokeragefirm to give exercise instructions to OCC. In order to ensure that an option is exercised on a particularday, the holder must direct his brokerage firm to exercise before the firm’s cut-off time for accepting
exercise instructions for that day. Different firms may have different cut-off times for accepting
exercise instructions from customers, and those cut-off times may be different for different options.
A brokerage firm’s cut-off time for accepting exercise instructions becomes critical on the last trading
day before an option expires. An option that expires unexercised becomes worthless. An option
holder who intends to exercise an option before expiration must give exercise instructions to
his brokerage firm before the firm’s cut-off time for accepting exercise instructions on the last
trading day before expiration. If the expiration date of an option falls on a day on which an options
market is open for trading in that option, a brokerage firm’s last cut-off time for accepting exercise
instructions prior to the option’s expiration may be on the expiration date. Investors should be awareof their brokerage firm’s policies in this regard. Many brokerage firms accept standing instructions
to exercise, or have procedures for the exercise of, every option which is in the money by a specified
amount at expiration. These procedures often incorporate by reference OCC’s administrative
procedures that provide for the exercise of every option that is in the money by a specified amount at
expiration unless the Clearing Firm carrying the option in its accounts instructs OCC not to exercise
the option. Investors should determine from their brokerage firm the applicable cut-off times, thefirm’s procedures for submitting exercise instructions, and whether any of their options are subject toautomatic exercise. Investors should also determine whether the exercise of their options is subject
to standing instructions of their brokerage firm, and, if so, they should discuss with the firm thepotential consequences of such instructions.

55

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

In highly unusual circumstances (e.g., where a brokerage firm is unable to receive instructions fromits customers), a firm may be authorized under applicable rules to make an exception to its regular
cut-off time. However, in order for an option to be exercised, the brokerage firm must in any event
pass on its customer’s exercise instructions to OCC before expiration. OCC may allow exercises for alimited time after expiration in the unlikely event that OCC is unable to follow its normal procedures
for receiving exercise instructions from Clearing Members on the expiration date. Subject to that very
limited exception, OCC has no authority to extend the expiration of any option.
Once an exercise instruction is given by a Clearing Member to OCC, it cannot ordinarily be revoked
except to correct a bona fide error that is specified in a request filed by the Clearing Member prior
to a deadline specified in OCC’s rules.

Assignment
OCC follows established procedures for assigning exercises to Clearing Member accounts that
contain short option positions identical to the exercised options. These procedures may be different
for different classes of options. A description of OCC’s assignment procedures and the optionsclasses to which they apply is available on request from OCC at 125 S. Franklin, Ste 1200, Chicago,
Illinois 60606.
Assignments are ordinarily made prior to the commencement of trading on the business day
following receipt by OCC of the exercise instruction. In the case of options traded in evening sessions,
exercise instructions received by OCC on a business day are ordinarily assigned prior to the openingof trading in that day’s evening session.
Exercises may be assigned by OCC to a Clearing Member’s customers’ account. In that event, theClearing Member must, in turn, assign those exercises to its customers maintaining positions as
writers of the exercised options series. The rules of the options markets require their member firms
to establish fixed procedures for allocating assignments to customers (e.g., random selection or“first-in, first-out”) and to inform their customers of the method used and how it works.
Regardless of the method used, an option writer is subject to the risk each day the option is
exercisable that some or all of his short position may be assigned. (See the discussion in Chapter X
under “Risks of Option Writers.”) However, if less than all of the open interest in an options series is
exercised, OCC’s procedures for assigning exercises to Clearing Members and brokers’ procedures
for allocating assignments to customers may affect the likelihood that a customer’s position will beassigned and the potential size of the assignment.
It is possible that an option writer will not receive notification from its brokerage firm that an exercise
has been assigned to him until one or more days following the date of the initial assignment to theClearing Member by OCC. This creates a special risk for uncovered writers of physical delivery callstock options. This is discussed in numbered section 8 under “Risks of Options Writers” in Chapter X
and under “Settlement” in this chapter.

Settlement
Settlements between brokerage firms or their agents on virtually all exercised physical delivery stock
options are routinely handled through a stock clearing corporation in much the same way as ordinarypurchases and sales of the underlying equity security. Promptly after the exercise and assignment ofa physical delivery stock option, OCC reports it to the designated stock clearing corporation of the
Clearing Members representing the exercising holder and the assigned writer. If the stock clearing
corporation does not reject the transaction by a time specified in its agreement with OCC, settlement
is effected pursuant to the rules of the clearing corporation, and OCC has no further responsibility toeither the exercising holder or the assigned writer.
56

CHAPTER VIII: EXERCISE AND SETTLEMENT

In a few cases — which usually occur because an underlying equity security is no longer eligible
for clearance through a stock clearing corporation — settlements calling for the delivery of that
security are made directly between Clearing Members. OCC’s rules provide protect procedures forexercise settlements made directly between Clearing Members that involve the delivery of securities
which either have been called for redemption, are due to expire or with respect to which a call or
expiration date is impending, or are subject to an offer which will expire, if the expiration time (asdefined in OCC’s rules) is on or after the exercise settlement date for the option. Under these protect
procedures, the Clearing Member entitled to receive the securities may give a liability notice to thedelivering Clearing Member by a specified cut-off time prior to the expiration time. If a liability notice
is so given and the securities are not delivered sufficiently in advance of the expiration time to permit
the receiving Clearing Member to obtain their benefit, the delivering Clearing Member will be liable
for any resulting damages. If the failure to deliver was the fault of the Clearing Member’s customer,
the Clearing Member may (depending on its own procedures) pass that liability on to the customer.
Investors should be aware that correspondent clearing corporations may have protect procedures inrespect of the settlements made through them.
As of September 5, 2017, the regular exercise settlement date for physical delivery stock options is
the second business day after exercise. The regular exercise settlement dates for all other types ofphysical delivery options traded at the date of this document are described in the separate chaptersof the document discussing those options.
At the date of this document, settlements of exercises of cash-settled options and foreign currency
options are effected by Clearing Members through OCC. Settlement of exercises of cash-settled
options — through the payment in cash of the cash settlement amount — ordinarily takes place on
the business day immediately following the day of exercise. However, cash-settled capped options
that have been automatically exercised on any trading day other than the one immediately prior
to expiration are settled on the second business day after the automatic exercise is triggered. The
settlement of exercises of cash-settled options that have a settlement currency that is not U.S. dollars
is discussed under “Settlement Currency” in Chapter VII.
OCC has authority to postpone settlement of any option on any type of underlying interest when
OCC considers such action to be necessary in the public interest or to meet unusual conditions.
Each brokerage firm involved in an exercise or assignment settles with its own customer. Neither
OCC nor any options market has any responsibility to customers with respect to funds or securities
that have been received by brokerage firms for their customers. Investors may determine fromtheir brokerage firms when and how settlement amounts will be credited or debited to theirbrokerage accounts.
In certain unusual circumstances, an event may threaten to reduce the available supply of anunderlying security to a level insufficient to allow settlement if all of the outstanding option contracts
for the affected security were exercised. This could happen, for example, in the event of a successful
tender offer for all or substantially all of the outstanding shares of an underlying security or if tradingin an underlying security were enjoined or suspended. If OCC in its discretion determines that asituation of that type exists, OCC may impose special exercise settlement procedures. These special
procedures, applicable only when an assigned call writer or an exercising put holder is unable toobtain the underlying security, may involve the suspension of the settlement obligations of theholder and writer and/or the fixing of cash settlement prices in lieu of delivery of the underlying
security. When special exercise settlement procedures are imposed, OCC will announce to its
Clearing Members how settlements are to be handled. Investors may obtain that informationfrom their brokerage firms.

57

CHAPTER IXTax Considerations, Transaction Costs
and Margin Requirements
Options investing, like other forms of investing, involves tax considerations, transaction costs andmargin requirements that can significantly affect the profit or loss results of buying and writing
options. These are only briefly mentioned in this chapter, but should be understood and taken into
account by everyone considering transactions in options.
Notwithstanding the importance of tax considerations, transaction costs and margin requirements,
for the sake of simplicity, the examples in this document do not take these matters into account.
Nevertheless, it should be remembered that their impact may significantly reduce the opportunity forprofit and the rate of return obtainable from particular options trading strategies; indeed, their effectmay in some instances turn an apparent profit into a loss.

Tax Considerations
The tax consequences of an options transaction depend, in part, on the tax status of the investor
and also may differ depending upon the type of underlying interest involved — since the tax rules are
not the same for each type of underlying interest — and upon such factors as whether an option is
exercised or is the subject of a closing transaction or is allowed to expire or whether an option thatis written is covered or uncovered. Some options markets have publications that deal specificallywith the tax treatment of various options transactions. These may be obtained from brokeragefirms as well as the markets themselves. Because of the importance of tax considerations to all
options transactions, it cannot be emphasized too strongly that the reader considering options
should consult with his tax adviser as to how taxes may affect the outcome of contemplated
options transactions.

Transaction Costs
The transaction costs of options investing consist primarily of commissions (which are imposed in
opening, closing, exercise and assignment transactions), but may also include margin and interest
costs in particular transactions. The impact of transaction costs on profitability is often greaterfor options transactions than for transactions in the underlying interests because these costs areoften greater in relation to options premiums than in relation to the prices of underlying interests.
Transaction costs are especially significant in option strategies calling for multiple purchases and salesof options, such as spreads and straddles. Readers should always discuss transaction costs with theirbrokerage firms before engaging in options transactions.

Margin Requirements
Writers of options, other than certain covered call option writers and certain writers of cash secured
puts (discussed below), must comply with applicable margin requirements.
In the stock market, margin refers to buying stock or selling stock short on credit. Margin customers
are required to keep securities on deposit with their brokerage firms as collateral for their borrowings.
In the options market, margin means the cash or securities required to be deposited by an option
writer with his brokerage firm as collateral for the writer’s obligation to buy or sell the underlying
interest, or in the case of cash-settled options to pay the cash settlement amount, if assigned an
exercise. Minimum margin requirements are currently imposed by the Board of Governors of the58

CHAPTER IX: TAX CONSIDERATIONS, TRANSACTION COSTS AND MARGIN REQUIREMENTS

Federal Reserve System, the options markets and other self-regulatory organizations, and higher
margin requirements may be imposed — either generally or in individual cases — by the various
brokerage firms.
Uncovered writers may have to meet calls for substantial additional margin in the event of adverse
market movements. Even if a writer has enough equity in his account to avoid a margin call, increased
margin requirements on his option positions will make that equity unavailable for other purposes.
If a holder of a physical delivery call option exercises and wishes to purchase the underlying intereston credit, the holder may be required to deposit margin with the holder’s brokerage firm. Holders ofphysical delivery options on a foreign currency should be aware that, at the date of this document,
foreign currency has no value for margin purposes except to the extent that credit has been extended
on the same foreign currency.
Margin requirements are complex and are not the same for writers of options on different types ofunderlying interests. Margin requirements are subject to change, and may vary from brokerage firm
to brokerage firm. Consequently, the examples in this document do not take margin requirements
into account. However, margin requirements can have an important effect on an option writer’s risks
and opportunities.
Persons considering writing options (whether alone or as part of options combinations, such as
spreads or straddles) should determine the applicable margin requirements from their brokeragefirms and be sure that they have sufficient liquid assets to meet those requirements in the event ofadverse market movements.

59

CHAPTER X

Principal Risks of Options Positions
This chapter discusses the principal risks of holders and writers of options. The risks discussed
are those that are unique to being an option holder or writer. Risks that relate to such matters as
the trading of securities generally; the state of the economy; the supply and demand factors in
the options markets and in other related markets; the factors affecting the values of the various
underlying interests; the factors affecting the volatility, liquidity and efficiency of the options
markets or of other markets or other factors that may affect the pricing of particular options; thequality or operations of the various options markets at any particular time; and the procedures ofthe various options markets and of brokers in transmitting orders and effecting executions are notwithin the scope of this document and are not discussed. (See the discussion in Chapter XI as tothe scope and limitations of this document.)
It should also be noted that new types of options and new options strategies are constantly
being developed and that some of the risks of new options products and new options strategies
do not become apparent until there has been significant experience in trading and using thenew options and strategies. Accordingly, readers should be aware that there is a risk in newness,particularly if the new option or strategy is complicated or complex, that cannot always be
identified or described.
Readers should also be aware that not all options strategies will necessarily be suitable for themand that certain strategies may expose them to very significant potential losses. For example, therisks associated with the writing of puts or uncovered calls expose investors to such potential
losses, and this type of strategy is therefore not suitable for all investors.
Many of the risks are the same for options on all types of underlying interests, although somespecial risks may apply only to options on particular types of underlying interests. The first three
sections of this chapter describe risks that apply generally to options on all types of underlying
interests. They are followed by sections discussing the special risks associated with options on
the particular types of underlying interests.
Risks discussed in this chapter are applicable to binary options and range options as well as otheroptions, except as otherwise noted. Certain risks discussed in the section entitled “Special Risks
of Index Options’ are applicable to binary index options and range options as well. Special risks
applicable to holders and writers of binary options are discussed in this chapter in the sections
entitled “Special Risks of Binary Options (Other than Credit Default Options)” and “Special Risks
of Credit Default Options.” Special risks applicable to holders and writers of range options are
discussed in this chapter in the section entitled “Special Risks of Range Options.”
The value of an option is affected by the value of the underlying interest. It is beyond the scopeof this document to discuss the characteristics or risks of underlying interests. If a description orrisk factor is mentioned in this document with respect to a particular class of underlying interest,
you should not assume that the same statements will be made with respect to all underlying
interests discussed herein to which they may be applicable. You should look to disclosures madeby issuers of underlying securities or information provided by publishers of underlying indexes andto information available from your broker or other sources to determine the nature and risks of theinterests underlying the options that you trade. Some underlying interests may themselves involvea high degree of risk. Where the value of an underlying security is based in whole or in part on theperformance of an index, information provided by the publisher of the referenced index, as well as
financial and other disclosures made by the issuer of the underlying security regarding the issuer’s
ability to perform its obligations, may be relevant.

60

CHAPTER X: PRINCIPAL RISKS OF OPTIONS POSITIONS

Risks of Option Holders
1. An option holder runs the risk of losing the entire amount paid for the option in a relatively
short period of time. This risk reflects the nature of an option as a wasting asset which becomes
worthless when it expires. An option holder who neither sells her option in the secondary market nor
exercises it prior to its expiration will necessarily lose her entire investment in the option. (As noted
in Chapter VIII, many brokerage firms have procedures for the exercise of options at expiration thatare then in the money by a specified amount.)
The fact that options become valueless upon expiration means that an option holder must not only
be right about the direction of an anticipated price change in the underlying interest, but she mustalso be right about when the price change will occur. If the price of the underlying interest does notchange in the anticipated direction before the option expires to an extent sufficient to cover the costof the option, the investor may lose all or a significant part of her investment in the option. This
contrasts with an investor who purchases the underlying interest directly and may continue to holdher investment, notwithstanding its failure to change in price as anticipated, in the hope of waitingout an adverse price move and eventually realizing a profit.
The significance of this risk to an option holder depends in large part upon the extent to which
she utilizes the leverage of options to control a larger quantity of the underlying interest than she
could have purchased directly with the same investment amount. This is illustrated in the following
example, which compares the consequences of three different approaches to investing the sameamount of money in stock or options, with each approach involving a different degree of leverage.
EXAMPLE: Assume that Investors A, B and C each have $5,000 to invest and that each anticipates
an increase in the market price of XYZ stock, which is currently $50 a share. Investor A invests his$5,000 in 100 shares of XYZ. Investor B invests $500 in the purchase of an XYZ 50 call (covering
100 shares of XYZ at a premium of $5 a share) and invests the remaining $4,500 in a relatively
risk-free investment such as Treasury bills. (For purposes of this example, it is assumed that all of
the calls are purchased when they have six months remaining until expiration, and that the risk-free
investment bears interest at an annual rate of, say, 3.25% — which means that a $4,500 investment
will earn approximately $73 in interest over six months.) Investor C invests his entire $5,000 in
10 XYZ 50 calls.

If each option is held for six months and, if it is profitable, is either sold or exercised immediately
before it expires, the following table illustrates the dollar and percentage profit or loss that each
investor would realize on his $5,000 investment, depending upon the price of XYZ stock when
the option expires.
Price of XYZstock at
expiration of
optionInvestor A

Investor B

Investor C

Profit or Loss

% Return

Profit or Loss

% Return

Profit or Loss

% Return

62…

+ 1,200

+ 24%

+ 773

+ 15.5%+ 7,000+ 140%

58…

+ 800

+ 16%

+ 373

+ 7.5%+ 3,000

+ 60%

54…

+ 400

+ 8%

-27

- 0.5%- 1,000

- 20%

50…

0

0

-427

- 8.5%- 5,000- 100%

46…

- 400

-8%

-427

- 8.5%- 5,000- 100%

42…

- 800

- 16%

-427

- 8.5%- 5,000- 100%

38…

- 1,200

- 24%

-427

- 8.5%- 5,000- 100%

61

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

The table demonstrates how increased leverage results in greater profit potential on the upsideand greater risk of loss on the downside. Investor C, as the most leveraged investor, would realize
the highest percentage return if the price of XYZ increased to 62, but would incur a 20% loss even
if the price of XYZ increased to 54 (assuming he did not sell his options while they had significant
remaining time value), and would lose all of his investment if the price of XYZ stayed at or below 50.
Only the first two paragraphs of this numbered section 1 are applicable to binary options and range
options. The amount by which a binary option is in the money does not affect the value of the option(and therefore the option holder’s profit or loss) upon exercise. In the case of a range option, thevalue of the option is based on where the level of the underlying index falls within the range length
at expiration, and not on the difference between the level of the underlying index and a discrete
exercise price. Furthermore, as discussed below under the caption “Special Risks of Range Options,”
the value of a range option does not always move in the same direction as the underlying interest.
2. The more an option is out of the money and the shorter the remaining time to expiration, thegreater the risk that an option holder will lose all or part of his investment in the option. The
greater the price movement of the underlying interest necessary for the option to become profitable(that is, the more the option is out of the money when purchased and the greater the cost of theoption) and the shorter the time within which this price movement must occur, the greater the
likelihood that the option holder will realize a loss. This does not necessarily mean that an option
must be worthwhile to exercise in order for a holder to realize a profit. Instead, it may be possible forthe holder to realize a profit by selling an option prior to its expiration for more than its original costeven though the option never becomes worthwhile to exercise. (The shorter the time remaining until
expiration the less likely it is that this will be possible.)
3. Prior to the period when a European-style option (including a European-style delayed start
option), a capped option, or an American-style delayed start option is exercisable, the onlymeans through which the holder can realize value from the option (unless the capped option is
automatically exercised) is to sell it at its then market price in an available secondary market. If
a secondary market for such an option is not available during the time the option is not exercisable, itwill not be possible for its holder to realize any value from the option at that time.
4. The exercise provisions of an option may create certain risks for the option holders. If the option
does not have an automatic feature, a holder who wishes to exercise must assure that action is taken
in a timely manner. See the discussion of “How to Exercise” in Chapter VIII.
On the other hand, if the option has an automatic exercise feature — such as one that will cause
the option to be automatically exercised at the expiration if it is in the money by a specified
amount — the option may be exercised at a price at which the holder would not voluntarily choose
to exercise in view of the transactions costs of exercise or other factors. The transaction costs
associated with the exercise could even exceed the cash settlement amount of the option, with theresult that the holder would realize a net loss from the exercise. Conversely, an option that has acash settlement amount that is less than the threshold amount cannot be exercised even though theoption holder’s transaction costs may be low enough to permit the option to be exercised profitably.
In such a case, the option may expire unexercised.
The automatic exercise feature of capped options imposes a maximum value that a holder of these
options can receive. Even if the option holder expects the value of the underlying interest to continue
to move in a favorable direction prior to its expiration, the automatic exercise feature will prevent theholder from realizing any gain from the option in excess of the cap interval times the multiplier forthe option.
5. The courts, the SEC, another regulatory agency, OCC or the options markets may impose
exercise restrictions. OCC and the options markets have authority to restrict the exercise of
options at certain times in specified circumstances. The options markets often exercise such
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CHAPTER X: PRINCIPAL RISKS OF OPTIONS POSITIONS

authority with respect to an option in which trading has been halted. If a restriction on exercise is
imposed at a time when trading in the option has also been halted, holders of that option will belocked into their positions until either the exercise restriction or the trading halt has been lifted.
Exercise restrictions imposed by OCC and the options markets affecting cash-settled options
generally cannot be continued in effect beyond the opening of business on the last trading day
before their expiration. Such exercise restrictions affecting physical delivery options generally cannot
be continued beyond the opening of business on the tenth business day before their expiration.
It is also possible that a court, the SEC or another regulatory agency having jurisdiction would impose
a restriction which would have the effect of restricting the exercise of an option. In such a case theoption would not be exercisable until the restriction was terminated. In the remote possibility thatthe restriction were to remain in effect until the expiration of the option,  the option would expire
worthless, and the holder would lose the entire amount that he paid for the option.

Risks of Option Writers
The risks discussed in numbered sections 3, 4, 5 and 10 below apply to writers of non-binary andbinary options, but the risks discussed in numbered sections 1, 2, 6, 7, 8, 9 and 11 are inapplicable towriters of binary options. Special risks of binary options are discussed below under the caption “Special
Risks of Binary Options (Other Than Credit Default Options).”
The risks discussed in numbered sections 5, 9 and 10 below apply to writers of range options, but therisks discussed in numbered sections 1, 2, 6, 7, 8 and 11 do not. Although some of the risks discussed
in numbered sections 3 and 4 apply to writers of range options, these risks are separately discussed
below under the caption “Special Risks of Range Options” because range options are of a single type
(rather than consisting of a put class and a call class) and have a unique payout structure.
1. An option writer may be assigned an exercise at any time during the period the option is
exercisable. Starting with the day it is purchased (provided, in the case of a delayed start option, thatits exercise price has been set), an American-style option is subject to being exercised by the option
holder at any time until the option expires. This means that the option writer is subject to being
assigned an exercise at any time after she has written the option until the option expires or until she
has closed out her position in a closing transaction. By contrast, the writer of a European-style option(including a European-style delayed start option), a capped option, or an American-style delayed
start option before its exercise price is set is subject to assignment only when the option becomes
exercisable or, in the case of a capped option, when the automatic exercise value of the underlying
interest hits the cap price.
An assigned writer may not receive notice of the assignment until one or more days after theassignment has been made by OCC. Once an exercise has been assigned to a writer, the writer may
no longer close out the assigned position in a closing purchase transaction, whether or not she hasreceived notice of the assignment. In that circumstance, an attempted closing purchase would betreated as an opening purchase transaction.
If an option that is exercisable is in the money, the option writer can anticipate that the option will
be exercised, especially as expiration approaches. Once she is assigned an exercise, the assigned writer
must deliver (in the case of a call) or purchase (in the case of a put) the underlying interest (or pay
the cash settlement amount in the case of an in the money cash-settled option). The consequencesof being assigned an exercise depend upon whether the writer of a call is covered or uncovered, as
discussed below.

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CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

2. The writer of a covered call forgoes the opportunity to benefit from an increase in the value ofthe underlying interest above the option price, but continues to bear the risk of a decline in thevalue of the underlying interest. Unlike a holder of the underlying interest who has not written acall against it, the covered call writer has (in exchange for the premium) given up the opportunity
to profit from an increase in the value of the underlying interest above the exercise price. If he
is assigned an exercise, the net proceeds that he realizes from the sale of the underlying interest
pursuant to the exercise could be substantially below its prevailing market price.
EXAMPLE: When XYZ stock was $50, the investor collected a $4 a share premium by writing an XYZ
50 delivery call. As expiration approaches, the stock has risen to $58 and he is assigned an exercise.
His total return, in addition to any dividends received, will be the $50 exercise price he is paid for thestock plus the $4 premium collected when the option was written — $4 a share less than the $58 hecould have sold the stock for if he had not written the option.

On the other hand, if the value of the underlying interest declines substantially below the exercise
price, the call is not likely to be exercised and, depending upon the price paid for the underlying
interest, the covered call writer could have an unrealized loss on the underlying interest. However,that loss will be wholly or partially offset by the premium he received when he wrote the option.
3. The writer of an uncovered call (other than a binary call) is in an extremely risky position andmay incur large losses if the value of the underlying interest increases above the exercise price.
For the writer of an uncovered call (other than a binary call), the potential loss is unlimited. When aphysical delivery call is assigned an exercise, the writer will have to purchase the underlying interestin order to satisfy his obligation on the call, and his loss will be the excess of the purchase price overthe exercise price of the call reduced by the premium received for writing the call. In the case of acash-settled call other than a binary call, the loss will be the cash settlement amount reduced by
the premium. Anything that may cause the price of the underlying interest to rise dramatically, suchas a strong market rally or the announcement of a tender offer for an underlying stock at a pricethat is substantially above the prevailing market price, can cause large losses for an uncovered callwriter. For the writer of a binary call, the potential loss will be limited to the fixed cash settlement
amount of the option minus the premium received for writing the call. The writer of a binary call will
be obligated to pay the entire fixed cash settlement amount if the exercise settlement value is only
slightly in the money or, for certain binary calls, even if the exercise settlement value is at the money.
EXAMPLE: An investor receives a premium of $4 a share for writing an uncovered XYZ 50 call option
and the stock price jumps to $69 as the option approaches expiration. If the investor liquidates
his option position at, say, $19, in an offsetting closing purchase transaction, he will incur a lossof $1,500 (the $1,900 paid in the offsetting purchase transaction less the $400 option premium
received when the option was written).

EXAMPLE: An investor receives a premium of $4 for writing a binary call option on XYZ security thathas an exercise price of $80 and a fixed cash settlement amount of $100. If the exercise settlement
value of XYZ is $81 at expiration, the investor will incur a loss of $96 (the $100 paid to the holderof the call option less the $4 premium received when the option was written).

The writer of an uncovered call (other than a binary call) is in an extremely risky position and may
incur large losses. Moreover, as discussed in Chapter IX, a writer of uncovered calls must meet
applicable margin requirements (which, except in the case of binary calls, can rise substantially if themarket moves adversely to the writer’s position). Uncovered call writing is thus suitable only for the64CHAPTER X: PRINCIPAL RISKS OF OPTIONS POSITIONS

knowledgeable investor who understands the risks, has sufficient liquid assets to meet applicablemargin requirements, and, except in the case of binary options, where the potential loss is limited as
described above, has the financial capacity and willingness to incur potentially substantial losses. A
binary call writer may be required under exchange rules to deposit the full cash settlement amountat the time the option is written.
4. As with writing uncovered calls, the risk of writing put options is substantial. The writer of aput option bears a risk of loss if the value of the underlying interest declines below the exercise
price, and such loss could be substantial if the decline is significant. The writer of a put bears therisk of a decline in the price of the underlying interest — potentially to zero in the case of a put otherthan a binary put. A writer of a physical delivery put who is assigned an exercise must purchasethe underlying interest at the exercise price — which could be substantially greater than the current
market price of the underlying interest — and a writer of a cash-settled put other than a binary
put must pay a cash settlement amount which reflects the decline in the value of the underlying
interest below the exercise price. For the writer of a binary put, the potential loss will be the fixedcash settlement amount of the option minus the premium received for writing the put. The writerof a binary put will be obligated to pay the entire fixed cash settlement amount even if the exercise
settlement value of the option is only slightly in the money. Unless a put is a cash-secured put(discussed below), its writer is required to maintain margin with his brokerage firm. Moreover, thewriter’s purchase of the underlying interest upon being assigned an exercise of a physical delivery
put may result in an additional margin call.
Put writers must have an understanding of the risks, the financial capacity and willingness toincur potentially substantial losses, and the liquidity to meet margin requirements and to buy theunderlying interest, or to pay the cash settlement amount, in the event the option is exercised.
A writer of an American-style put other than a delayed-start option can be assigned an exercise
at any time during the life of the option until such time as she enters into a closing transaction
with respect to the option. A writer of an American-style delayed-start option can be assigned an
exercise at any time after the option’s exercise price is set until such time as she enters into a closing
transaction with respect to the option. Since exercise will ordinarily occur only if the market price of
the underlying interest is below the exercise price of the option, the writer of a physical delivery put
option can expect to pay more for the underlying interest upon exercise than its then market value.
EXAMPLE: At a time when XYZ stock is $50, an investor receives a $300 premium ($3 a share) by
writing an XYZ 50 put. Subsequently the stock price declines to $40 and she is assigned an exercise.
The investor must purchase the stock at $50. Even though the $3 a share premium reduces her
effective cost to $47, that is still substantially higher than the $40 market price of the stock.

EXAMPLE: An investor receives a premium of $4 for writing a binary put option on XYZ security thathas an exercise price of $80 and a fixed cash settlement amount of $100. If the exercise settlement
value of XYZ is $79 at expiration, the investor will incur a loss of $96 (the $100 paid to the holderof the put option less the $4 premium received when the option was written).

In the case of a put other than a binary put, the put writer’s exposure to margin requirements canbe eliminated if the put writer deposits cash equal to the option’s exercise price with his brokeragefirm. Under this strategy, known as cash-secured put writing, the put writer is not subject to any
additional margin requirements regardless of what happens to the market value of the underlying
interest. In the meantime, the put writer might earn interest by having the cash invested in ashort-term debt instrument — for example, in a Treasury bill. However, a cash-secured put writeris still subject to a risk of loss if the value of the underlying interest declines. The risk of writers ofbinary puts is limited to the cash settlement amount of the option, and a binary put writer may be
65

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

required under exchange rules to deposit the full cash settlement amount at the time the option
is written.
EXAMPLE: An investor receives a $500 premium for writing an XYZ 50 put option with six months
remaining until expiration and deposits with her broker $5,000 invested in Treasury bills which,over the six month option life, will earn interest of $250. If she has not been assigned an exercise
by expiration, the investor will have a total return of $750 (option premium of $500 and interestof $250). On the other hand, if the price of XYZ stock were to fall below $42-1/2 and the investor
is then assigned an exercise, she would have a net loss — that is, the market price of the XYZ stock
she would be required to purchase would be below the exercise price by more than the combined
premium income and interest earned.

5. The risk of being an option writer may be reduced by the purchase of other options on the sameunderlying interest — and thereby assuming a spread position — or by acquiring other types ofhedging positions in the options markets or other markets. However, even where the writer has
assumed a spread or other hedging position, the risks may still be significant. See numberedsection 1 under “Other Risks.” The risk profile of a spread where the long and short legs are optionsof different types is not the same as where both legs are options of the same type. For example,
where the short leg is a conventional option, the risk-reducing characteristics of a long leg
consisting of binary or range options are different than where the long leg is a conventional option
because of the fixed cash settlement amount of binary options and the unique payout structure ofrange options.
6. The obligation of a writer of an uncovered call or of a put that is not cash-secured to meet
applicable margin requirements creates additional risks. If the value of the underlying interest
moves against the writer’s position, or if there is a significant change in the volatility or liquidity of
the underlying interest, related interests, or the option, or if the writer’s brokerage firm otherwise
requires, the firm may request significant additional margin payments. If those payments are notmade, the firm may have the right to liquidate the options positions and other securities positionsin the writer’s account with little or no prior notice.
7. Since the leverage inherent in an option can cause the impact of price changes in the underlying
interest to be magnified in the price of the option, a writer of an option that is uncovered andunhedged may have a significantly greater risk than a short seller of the underlying interest.
This is illustrated by the table set forth in numbered section 1 under “Risks of Option Holders” above.
If an investor had sold short 100 shares of XYZ to Investor A in that table in order to receive $5,000 inproceeds, the investor would have lost $1,200 if the market price of XYZ had increased to 62. On theother hand, if, in order to receive $5,000 in proceeds, the investor had written 10 XYZ 50 uncovered
calls, she would have lost $7,000 if the market price of XYZ had increased to 62.
8. The fact that an option writer may not receive immediate notification of an assignment createsa special risk for uncovered writers of physical delivery call stock options that are exercisable
when the underlying security is the subject of a tender offer, exchange offer, or similar event.
A writer who fails to purchase the underlying security on or before the expiration date for the offer
may learn after the expiration date that he has been assigned an exercise filed with OCC on or before
that date. At that point, neither the purchase of the underlying security for regular settlement nor
the exercise of another option (e.g., the long leg of a spread) will enable the assigned writer to deliver
the security on the settlement date for the option exercise (see “Settlement” in Chapter VIII). If theassigned writer fails to make timely settlement, he may be liable for, among other things, the valueof the offer (because his non-delivery may have prevented the exercising holder from making timely
delivery of the security to the offerer). This risk can be avoided only by purchasing the underlying
security on or before the expiration date for the offer. Occasionally, an offer will require that tenderedsecurities be delivered in less than the normal settlement time for exchange transactions after66

CHAPTER X: PRINCIPAL RISKS OF OPTIONS POSITIONS

the offer’s expiration date. In those cases, call writers will need to purchase the underlying equity
security at an earlier point — i.e., at least the number of days equal to the normal settlement time
before the offerer’s delivery deadline — in order to protect themselves.
9. Although the rules of the options markets establish exercise cut-off times by which exercise
instructions of expiring options must be received by brokerage firms from their customers, OCC
must accept all exercises which it receives before expiration — even if those exercises are filed with
OCC in violation of an options market’s rules. Accordingly, there is a risk that an option writer
will be assigned an exercise that is made based on news that is published after the establishedexercise cut-off time and that the writer may not have an effective remedy to compensate forthe violation of the options market’s rules.
10. If a trading market in an option should become unavailable, or if the writers of the option areotherwise unable to engage in closing transactions, the writers of that option would remain
obligated until expiration or assignment. See the discussions in numbered sections 2 and 3
under “Other Risks’ below.
11. A sudden development may cause a sharp upward or downward spike in the value ofthe interest underlying a capped option. Such a spike could cause the capped option to be
automatically exercised, and writers of the option to become obligated to pay the cash settlement
amount, even if the effect of the development on the value of the underlying interest completely
disappears on the day after the automatic exercise is triggered.

Other Risks
1. Transactions that involve buying and writing multiple options in combination, or buying or
writing options in combination with buying or selling short the underlying interests, present
additional risks to investors. Combination transactions, such as option spreads, are more complex
than buying or writing a single option. And it should be further noted that, as in any area of investing,a complexity not well understood is, in itself, a risk factor. While this is not to suggest thatcombination strategies should not be considered, it is advisable, as is the case with all investments inoptions, to consult with someone who is experienced and knowledgeable with respect to therisks and potential rewards of combination transactions under various market circumstances.
The investor considering strategies involving combination transactions should recognize several otherrisk-related considerations in addition to those already mentioned: the fact that it may at times be
impossible simultaneously to execute transactions in all of the options involved in the combination,
the difficulty that may be involved in attempting to execute simultaneously two or more buy orsell orders at the desired prices, the possibility that a loss could be incurred on both sides of a
combination transaction, and the increased risk exposure that would result from the exercise or
closing out of one side of the trade while the other side of the trade remains outstanding. Also, thetransaction costs of combination transactions can be especially significant, since separate costs are
incurred on each component of the combination. This can have the effect of requiring a substantial
favorable price movement in the underlying interest before a profit can be realized.
Where a combination transaction involves the writing of an in the money American-style option, an
investor must keep in mind the possibility of being assigned an exercise, which would eliminate thatcomponent of the transaction and could materially change the investor’s risk position.
In the case of straddle writing, where the investor writes both a put and a call on the sameunderlying interest at the same exercise price in exchange for a combined premium on the two
writing transactions, the potential risk is unlimited (except in the case of capped options orbinary options). Except where a straddle consists of binary options, to the extent that the price of
the underlying interest is either below the exercise price by more than the combined premium, or
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above the exercise price by more than the combined premium, the writer of a straddle will incur aloss when one of the options is exercised. Indeed, if the writer is assigned an exercise on one option
position in the straddle and fails to close out the other position, subsequent fluctuations in the priceof the underlying interest could cause the other option to be exercised as well, causing a loss on both
writing positions. An investor who writes a straddle using binary options will incur a loss when the
combined premium is less than the fixed cash settlement amount of the option that is exercised.
Combinations involving different styles of options present added complexities. For example, theassigned writer of an American-style option would be unable to cover by exercising a European-styleor capped-style option that he holds unless the assignment happened to occur during the exercise
period of that option.
Combination transactions involving all cash-settled options also pose the same risks that are
discussed for index options under “Special Risks of Index Options” below.
2. If a trading market in particular options were to become unavailable, investors in those
options could no longer engage in closing transactions. Moreover, even if the market were toremain available, there may be times when options prices will not maintain their customaryor anticipated relationships to the prices of the underlying interests and related interests.
The options markets attempt to provide secondary markets in which holders and writers ofoptions can close out their positions at any time prior to expiration — by making offsetting sales
or purchases — but there is no guarantee that such a market will at all times exist for every option.
Lack of investor interest, changes in volatility, or other factors or conditions might adversely
affect the liquidity, efficiency, continuity or even the orderliness of the market for particular
options. Or an options market might permanently discontinue trading of a particular option
or of options generally (although it has ordinarily been the practice, when an options market
decides to discontinue trading of options on a particular underlying interest, to do so only after all
outstanding series of those options have expired if the options are not traded on another options
market). A market could become temporarily unavailable if unusual events — such as volume inexcess of trading or clearing capability, computer malfunction, fire or natural disaster — were tointerrupt normal market operations. As discussed in numbered section 3, an options market may
also become unavailable in the event trading in the underlying interest is formally suspended or
halted. It is also possible that an options market will not open, or will delay opening, trading incertain options even though trading is taking place in the underlying security (or in the constituent
securities of an underlying index).
In addition, an options market may at times determine to impose restrictions on particular types of
options transactions, such as opening transactions or uncovered writing transactions. For example,
if an underlying interest ceases to meet qualifications imposed by the options market or OCC, newseries of options on that interest may no longer be opened to replace expiring series, and opening
transactions in existing series may be prohibited.
The accounts of options market makers and specialists are carried and guaranteed by a relatively
few firms. If one of these firms were to fail, be suspended by OCC, be restricted in its operations,determine or be required to discontinue or reduce its operations, or have a significant reduction inits capital, the markets for particular options, or even for all options, could be disrupted or possibly
forced to discontinue trading. Similarly, in the event an options specialist or a significant groupof options market makers should fail or have a significant reduction in capital, the markets in theparticular options in which the specialist or market makers traded could be adversely affected.
The suspension by OCC of any Clearing Member that maintains significant positions in a particular
options series in its accounts could also disrupt the market for that options series.
An options market could also become unavailable because of its own financial problems. For example,
if an options market were to be declared bankrupt or if creditors were to take possession of its
principal trading systems, it might be unable to continue to operate as an options market.
68CHAPTER X: PRINCIPAL RISKS OF OPTIONS POSITIONS

If a secondary market in a particular option were to become unavailable, a holder of that option
would be able to realize his profits or limit his losses only by exercising at a time when the option is
exercisable, and a writer of that option would remain subject to assignment until expiration. However,as noted in numbered section 5 under “Risks of Options Holders,” an options market may also restrict
exercises of that option.
3. Disruptions in the markets for underlying interests could result in losses for options
investors. Each of the options markets has discretion to halt trading in an option in certain
circumstances — such as when the market determines that the halt would be advisable inmaintaining a fair and orderly market in the option. If trading is halted or suspended in one or moreof the markets for an underlying interest, the trading of options on that interest may also be halted.
Similarly, if dissemination of the current level of an underlying index is interrupted, or if tradingis interrupted in stocks accounting for a substantial portion of the value of an index, the tradingof options on that index may be halted. In addition, the rules of the options markets may requirethem to halt trading in particular types of options in certain circumstances. U.S. options markets
are required to halt trading in all stock options and stock index options when trading in all stocks on
the underlying exchange has been halted by the activation of “market-wide circuit breakers” by theunderlying exchange. This requirement may be changed from time to time.
When trading in an option is halted or suspended, holders and writers of that option will be unable toclose out their positions until trading resumes, and they may be faced with substantial losses if thevalue of the underlying interest moves adversely during that time. For example, if a trading halt in anunderlying stock is followed by the announcement of a tender offer at a substantial premium, andthe stock reopens at a price reflecting the offer, uncovered call writers may sustain large losses.
Even if options trading is halted, holders of American-style options, other than delayed start options
for which an exercise price has not yet been set, would still be able to exercise unless exercises wererestricted. (However, OCC or an options market may restrict the exercise of an option while tradingin the option has been halted, and the restriction may remain in effect until shortly before expiration.
See numbered section 5 under “Risks of Option Holders” above.) If the option is exercisable while
trading has been halted in the underlying interest, option holders may have to decide whether
to exercise without knowing the current market value of the underlying interest. This risk can
become especially important if an option is close to expiration, and failure to exercise will meanthat the option will expire worthless. If exercises do occur when trading of the underlying interest ishalted, the party required to deliver the underlying interest may be unable to obtain it, which may
necessitate a postponed settlement and/or the fixing of cash settlement prices (see Chapter VIII).
In the event that the underlying security of an option is not trading or a price cannot be obtained
or is otherwise unavailable on the expiration date for an option contract, OCC may, in its discretion,
fix a closing price on such basis as it deems appropriate for the circumstances, including, without
limitation, using the last sale price during regular trading hours on the most recent trading day forwhich a last sale price is available. Although this situation may occur infrequently, if the last available
trading price or other value as deemed appropriate is used for expiration processing, option holders
and writers with expiring positions on flexibly structured options on certain fund shares that settle
in cash bear the risk that the cash settlement amount may be based on the last price available orother value as deemed appropriate and such price or value may not reflect the current value of theunderlying security at the time of expiration.
4. All cash-settled options have certain special risks. The special risks applicable to cash-settled index
options are discussed under “Special Risks of Index Options” below. Special risks applicable to range
options are discussed under “Special Risks of Range Options” and the special risks applicable to binary
options are discussed under “Special Risks of Binary Options (Other than Credit Default Options)” and“Special Risks of Credit Default Options” below.

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If a cash-settled option has a settlement currency other than U.S. dollars, holders and writers
will be subject to the same kinds of risks with respect to the foreign currency and the settlementof an exercise as are discussed in numbered sections 1 through 9 under “Special Risks of Foreign
Currency Options” below.
5. Holders and writers of a capped option bear the risk that an automatic exercise value will bereported erroneously by the official reporting source. As a consequence of the error, the options
market on which the option is traded may not determine on a timely basis that the automatic
exercise feature has been triggered. In that event, the option will not be automatically exercised
unless the options market determines on a subsequent trading day that the automatic exercise
value for the option has hit the cap price. Alternatively, the options market may determine on thebasis of an erroneous report that the automatic exercise feature has been triggered. If the options
market makes such a determination and does not correct it on a timely basis, the option will be
automatically exercised and the short positions of all writers will be assigned based on the erroneous
report.
6. The insolvency of a brokerage firm could present risks for that firm’s customers, whether they
are investors in options or in other securities. If a brokerage firm or the OCC Clearing Member thatcarries the firm’s accounts at OCC were to become insolvent, the firm’s customers could have someor all of their options positions closed out without their consent. Customers whose options positions
were not closed out under these circumstances might experience delays or other difficulties inattempting to close out or exercise affected options positions. Similarly, the insolvency of an
associate clearing house could present risks for the customers of brokerage firms whose accounts
are carried through that associate clearing house.
7. Although OCC’s rules and procedures have been designed for the purpose, among others, offacilitating the prompt settlement of options transactions and exercises, there is a risk that OCC
and its backup system will fail. For example, if Clearing Member insolvencies are substantial or
widespread, OCC’s ability to honor all exercises could be impaired.

Special Risks of Index Options
The risks described in numbered sections 1 through 10 below relate primarily to options on stockindexes. The risks described in numbered sections 1, 2, 5, 8 and 10 also relate to options on foreign
currency indexes, although in the case of options on foreign currency indexes the components of
the index are foreign currencies rather than securities. The risks described in numbered section 11
relate to options on implied volatility indexes. The risks described in numbered sections 12 through14 relate to options on variability indexes, strategy-based indexes or relative performance indexes.
The risks described in numbered section 15 relate to delayed start options. The risk described in
numbered section 16 relates to dividend index options, and the risks described in numbered section
17 relate to relative performance options.
The risks discussed in numbered sections 4, 5, 7, 8 and 10 below are generally applicable to writers
of non-binary and binary index options, but the risks discussed in numbered sections 1 through 3, 6
and 9 are inapplicable to writers of binary index options. The risks discussed in numbered sections
4, 5, 7, 8 and 10 below apply to writers of range options on securities indexes, but the risks discussed
in numbered sections 1 through 3, 6 and 9 do not. Special risks of range options are discussed below
under the caption “Special Risks of Range Options.” Additionally, certain risks factors applicable tooptions on foreign currency indexes are discussed below under the caption “Special Risks of Foreign
Currency Options,” which discusses the risks of foreign currency options, many of which
are applicable to foreign currency index options.

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1. Writers of cash-settled index call options cannot provide in advance for their potential
settlement obligations by acquiring and holding the underlying interest. A call writer can offset
some of the risk of his writing position by holding a diversified portfolio of securities similar to thoseon which the underlying index is based. However, except where the underlying index is a specialized
one based on relatively few securities, most investors cannot, as a practical matter, acquire and holda portfolio containing exactly the same securities in the same proportions as the underlying index.
Most writers of cash-settled index calls who also hold positions in securities will therefore bear
the risk that the market prices of those securities will not increase as much as the index.
2. Even if the writer of a cash-settled index call option could assemble a securities portfoliothat exactly reproduced the composition of the underlying index, the writer still would not
be fully covered from a risk standpoint because of the “timing risk” inherent in writing cashsettled options. When a cash-settled index option is exercised, the amount of cash that the holder
is entitled to receive is determined by the difference between the exercise price and the exercise
settlement value, which is based on the prices of the constituent securities at a particular time on
or in relation to the date on which the option is exercised. As with most other kinds of options, thewriter may not learn that he has been assigned until the next business day, at the earliest. The timelag between exercise and notice of assignment poses no risk for the writer of a covered physicaldelivery call, because that writer’s obligation is to deliver the underlying interest and not to pay
its value as of a fixed time in the past. So long as the writer of a physical delivery call already owns
the underlying interest, he can satisfy his settlement obligations simply by delivering it, and therisk that its value may decline after the exercise date is borne by the exercising holder. In contrast,
even if the writer of a cash-settled index call holds securities that exactly match the composition of
the underlying index, he will not be able to satisfy his assignment obligations by delivering thosesecurities against payment of the exercise price. Instead, he will be required to pay cash in an
amount based on the exercise settlement value on the exercise date, and by the time he learns that
he has been assigned, the index may have declined, with a corresponding decline in the value of the
securities portfolio. This “timing risk” is an inherent limitation on the ability of writers of cash settled
calls to cover their risk exposure by holding positions in the underlying interest. This risk applies only
to American-style options. The writer of a European-style capped call that is exercisable only on the
expiration date runs the risk of assignment only with respect to exercises filed on that day. If the callis more than marginally in the money on the preceding trading day, the writer can ordinarily assume
that it will be exercised and take market action to protect himself against a subsequent decline in thevalue of his position in the underlying interest.
3. The timing risk discussed in the preceding paragraph makes spread positions and certain othermultiple option strategies involving cash-settled American-style index options substantiallyriskier than similar strategies involving physical delivery options. With physical delivery options,a person in a spread position can ordinarily satisfy his settlement obligations on the short leg of the
spread merely by exercising the long leg if it is in the money. That is, the cash or underlying interest
that she obtains by exercising the long leg will ordinarily be sufficient to enable her to meet her
settlement obligations on the short leg. With cash-settled index options, however, an investor in a
spread position runs the risk that by the time she receives notice of an exercise assignment on theoption she has written, the index value will have changed such that exercising the long leg of the
spread will not yield sufficient cash to satisfy her obligation on the exercise assignment. Thus, aninvestor who holds a spread position in cash-settled index options and is assigned an exercise
is at risk for any adverse movement in the prices of the constituent securities of the index after
the time the exercise settlement value of the assigned short is determined unless the investor
is able to exercise the long leg of the spread in time to receive that same exercise settlement
value. Other multiple options strategies involving cash-settled options can present similar risks.
4. Readers intending to use index options to hedge against the market risk entailed in investing inindividual securities should recognize the complexities of utilizing index options in this manner.
Market risk is the risk that factors affecting the stock market as a whole may have a similar effecton the price of a particular equity security. Historically, some securities have tended to be highly
71CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

sensitive to factors influencing the market generally; others less so. As a result, different securities
may be viewed as involving different levels of market risk. In addition, a security’s sensitivity to broad
market influences may change over time, so that the same security may involve different levels ofmarket risk at different times.
Investors using index options in this manner should also understand that they remain subject to company
risk — that is, the risk that factors affecting a particular company, such as its market position or thequality of its management, may cause its securities to perform differently than the market as a whole.
In addition, readers intending to utilize index options to hedge a diversified securities portfolio against
market risk should understand that unless the securities in the portfolio exactly mirror the securities
in an underlying index, the portfolio and the index may respond differently to a given market influence.
For this reason, the use of index options for hedging purposes involves special risks that are not present
with “true” hedges — i.e., hedges composed of options on the specific securities in the hedged position.
These risks are greatest when options on broad-based indexes are used to hedge a non-diversified
securities position. Except where the composition of the position to be hedged is very similar to that ofan underlying index, index options may best be understood as a means of reducing some but not all of
the risks of a securities portfolio position.
Readers should also be aware that it may not be possible to purchase or liquidate a portfolio ofsecurities at prices that exactly converge with the prices used in determining the exercise settlement
values of some index options. For example, if the underlying index is comprised in whole or part of
securities whose primary market is the Nasdaq stock market, an investor cannot be certain that hewill be able to effect transactions in those securities at the opening or closing prices (as the case maybe) used in determining the exercise settlement value.
5. Holders and writers of index options generally bear the risk that the reported current index
level may be in error. Persons who exercise cash-settled index options or are assigned exercises
based on erroneously reported index levels will ordinarily be required to make settlement basedon the exercise settlement value as initially reported by the official source of the index, even if acorrected value is subsequently announced. In the case of binary index options, while the exercise
settlement amount is fixed, the exercise settlement value of the underlying index will determine
whether the option is automatically exercised and returns a cash settlement amount or expires
worthless. References herein to index values “as initially reported” refer to the values initiallyreported by the source of the index as definitive, and not to any tentative or preliminary values
that may be announced at an earlier time subject to adjustment. In extraordinary circumstances(e.g., where an exercise settlement value as initially reported is obviously wrong and inconsistent
with values previously reported, and a corrected value is promptly announced), OCC has discretion
to direct that exercise settlements be based on a corrected exercise settlement value. Ordinarily,
however, the exercise settlement value as initially reported by the official source of the index will
be conclusive for exercise settlement purposes.
6. A holder of a cash-settled index option who exercises it before the exercise settlement valueof the index for that day is available runs the risk that the level of the underlying index may
subsequently change. If such a change causes the exercised option to fall out of the money, theexercising holder will be required to pay the difference between the exercise settlement value andthe exercise price of the option (times the applicable multiplier) to the assigned writer.
EXAMPLE: A holder of an index put option that settles based on the closing prices of the constituent
securities and that has an exercise price of 30 directs his broker to exercise at 10:00 A.M., when
the level of the underlying index is 28. If the underlying index stays at that level until the close of
trading that day, the holder will be entitled to receive $200 in settlement (assuming a multiplier of100). If, however, the index level rises to 32 based on the closing prices of the constituent securities, theholder will be required to pay $200 to the assigned writer, thereby sustaining a $200 loss on the exercise.
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CHAPTER X: PRINCIPAL RISKS OF OPTIONS POSITIONSEXAMPLE: A holder of an index put option that settles based on the closing prices of the constituent
securities and that has an exercise price of 30 directs his broker to exercise at 10:00 A.M., when
the level of the underlying index is 28. If the underlying index stays at that level until the close of
trading that day, the holder will be entitled to receive $2 in settlement (assuming a multiplier of 1).
If, however, the index level rises to 32 based on the closing prices of the constituent securities, theholder will be required to pay $2 to the assigned writer, thereby sustaining a $2 loss on the exercise.

A holder who plans to exercise a cash-settled index option that settles based on closing prices canminimize this risk by withholding exercise instructions until just before the daily exercise cut-off
time fixed by his brokerage firm. However, he may not be able to eliminate it entirely. Daily exercise
cut-off times for index options may be earlier than those fixed for other types of options and may
occur before definitive exercise settlement values have been determined. In the case of the exercise
of a cash-settled index option that settles based on opening prices of the constituent securities,
this risk applies if the holder submits exercise instructions before the definitive exercise settlement
index value has been announced, which may be different from index levels that are initiallydisseminated at the time of the opening and which may not be available in some cases until several
hours after the opening.
7. Cash-settled index options whose exercise settlement values are based on the opening pricesof the constituent securities are not traded on the option expiration date, regardless of whether
trading occurs on the expiration date for the constituent securities of the index. If the option
expiration date falls on a day when the markets are scheduled to be closed (e.g., a holiday), cashsettled index options whose settlement values are based on the opening prices of the constituent
securities may not trade on the day prior to the expiration date. If the option expiration date falls
on a day when the markets are closed due to an unscheduled event (e.g., a natural disaster), cashsettled index options whose settlement values are based on the opening prices of the constituent
securities may not trade on the day prior to the expiration date depending on the circumstances andtiming of the event leading to the market closure. In the uncommon event of an unscheduled market
closure or a scheduled market closure that is also an expiration date for cash settled index options,
OCC will publish an information memo on its website to identify the settlement prices to be used for
cash settled products, and investors should reference this information to determine when trading ina cash-settled index option will not be available on the day prior to the expiration of such options.
Since A.M. cash-settled index options are not traded on the expiration date and, if applicable in thecase of a scheduled or unscheduled market closure, are not traded on the day prior to the option
expiration date, an option holder will be able to realize value from his option on such expiration
day or day prior to the expiration date, as the case may be, only if the option is in the money andis exercised. A writer of this type of option who has not previously closed out his position will be
unable to do so on that last trading day for the constituent securities and will be at risk of being
assigned an exercise.
8. Current index levels will ordinarily continue to be reported even when trading is delayed orinterrupted in some or all of the constituent securities of the index or when the reporting oftransactions in those securities has been delayed. In that event, the reported index levels will
be based on the most recent reported prices of the constituent securities — whether or not thosesecurities are being currently traded. As a result, reported index levels may at times be based on
non-current price information with respect to some or even all of the constituent securities ofan index. If this condition existed at the time of determining the exercise settlement value of an
exercised option, that exercise would be settled on the basis of an index level that might not reflectcurrent price information with respect to constituent securities accounting for a significant portion of
the value of the index. (Indeed, as noted in Chapter IV, an exercise settlement value that is based on
the opening prices of the constituent securities may not coincide with, and may diverge substantiallyfrom, the index values that are reported at the time of the opening.) Moreover, if the index underlay

73CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

a capped index option or a binary index option, that option would or would not be automatically
exercised based on an index level that might not reflect the true state of the market at the time.
If OCC determines that the primary market(s) for one or more component securities of an underlying
index did not open or remain open for trading, or that the component security or securities did notopen or remain open for trading on the primary market(s), on a trading day at or before the time
when the exercised settlement value for that trading day would ordinarily be determined, or thata current index value or other price or value needed to calculate the exercise settlement value for
an index option is otherwise unreported, inaccurate, unreliable, unavailable or inappropriate forpurposes of calculating the cash settlement amount, then OCC may suspend settlement obligations
for exercised and assigned contracts of the affected series. In the event of such a suspension, OCC
will fix a new settlement date after OCC determines that the exercise settlement value is available
or after OCC fixes the exercise settlement value.
If OCC determines to fix the exercise settlement value, it will act through a panel comprised ofrepresentatives from each exchange on which the series without an exercise settlement values
trades, that will use its judgment as to what is appropriate for the protection of investors and the
public interest. The panel may fix the exercise settlement value using the reported price or value ofthe relevant security or securities or index (i) at the close of regular trading hours (as determinedby OCC) on the last preceding trading day for which a price or value was reported by the reporting
authority, or (ii) at the opening of regular trading hours (as determined by OCC) on the next trading
day for which a price or value was reported by the reporting authority. Alternatively, the panel may
fix the exercise settlement value using a price or value for the relevant security or securities or index,
or using a combination or average of such prices or values, at or during such time or times that thepanel sees fit.
If a panel delays fixing an exercise settlement value for a series of index options past the last
trading day before expiration of that series, normal expiration exercise procedures will not apply
to the affected series. Instead, exercise settlement will be postponed until the next business day
following the day when the panel fixes the exercise settlement value, and each long position in
the affected series will be treated as having been exercised if the exercise settlement amountper contract is equal to or greater than the exercise threshold amount used in normal expiration
exercise procedures. For example, for an index option with a multiplier of 100, each long positionin the affected series will be treated as having been exercised if the exercise settlement amountper contract for that series is $1.00 or more, and if the exercise settlement amount per contract
is less than $1.00, the option will be treated as having expired unexercised. Similarly, for an index
option with a multiplier of 1, each long position in the affected series will be treated as having been
exercised if the exercise settlement amount per contract is $0.01 or more, and if the cash settlement
amount per contract is less than $0.01, the option will be treated as having expired unexercised. As
a result of these procedures, holders of expiring index options may not know whether their options
have been exercised, and writers of such options may not know whether they have been assigned an
exercise notice, until after the expiration date. Investors should contact the listings options market
to obtain the exercise threshold amount of the options they trade. A panel’s determinations shall beconclusive, binding on all investors, and not subject to review.
9. OCC has no authority, and the options markets on which capped index options are traded do notintend as of the date of this document, to restrict the automatic exercise of capped index options.
It is therefore possible that automatic exercise of a capped index option could occur on a day when
OCC or an options market has imposed restrictions on the exercise of other styles of options on
the same underlying index. It is also possible that automatic exercise of a capped index option
could occur on a day when the options market has suspended trading in the option. Either of these
possibilities could limit the ability of a writer to take action to limit the cost of being assigned an
automatic exercise.

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CHAPTER X: PRINCIPAL RISKS OF OPTIONS POSITIONS

10. The purchase and sale of index options in foreign markets at times when U.S. markets are closed may
present special risks. Although an underlying index may be based on securities primarily traded in U.S.
markets, the index levels reported in foreign options markets at such times may be based on the tradingof some or all of the constituent securities in foreign markets, and, in any case, option premiums in theforeign market will not reflect current prices of the constituent securities in U.S. markets. In addition, if
a cash-settled index option (other than a binary index option) is exercised through the foreign office ofa brokerage firm on a day when U.S. markets are closed, the exercise settlement value of the option will
not be known until the time fixed for determining exercise settlement values on the next day on which
U.S. markets are open. The corresponding risks would apply to the trading in U.S. markets of options
based on indexes of securities primarily traded in foreign markets.
11. Because different values may be used in calculating indicative values and exercise settlement
values of the volatility indexes underlying implied volatility options, there is a risk that there may
be a divergence between the exercise settlement value and an indicative value calculated at
the opening on the date on which the exercise settlement value is being determined. (Pleaserefer to the discussion in Chapter IV under the heading “Variability Indexes” for the definition of
the term indicative value and a description of the method that is used to calculate an exercise
settlement value for implied volatility options.) For those implied volatility options that calculate theexercise settlement value by utilizing the actual opening prices of the relevant series of the index’s
component put and call options on the reference index (rather than using the mid-point between
opening bid and ask quotations), it is to be expected that there may will be at least some divergence
between the exercise settlement value for such expiring implied volatility options and the indicativevalue calculated at the opening on the same date. Such divergence may occur if the indicative value
is based on either the actual bid quotation or the actual ask quotation, depending on the forces ofsupply and demand, rather than the actual opening price for each of the options series that is used
to calculate the exercise settlement value. This divergence may represent a significant percentageof the indicative value for the implied volatility index if the forces of supply and demand cause allor most of the series to open on the same side of the market. There may also be variability in theexercise settlement value for those implied volatility indexes that calculate the exercise settlement
value by utilizing the mid-point of the bid and offering premium quotations at the opening of tradingof the relevant series of the put options on the reference interest. Readers should recognize andunderstand the risks associated with the different methods of determining the exercise settlement
values of the implied volatility options they intend to trade.
12. Strategies involving the purchase and sale of options on a variability index, strategy-based index
or relative performance index are inherently complex and require a thorough understanding of
the concepts that are measured by these indexes. Investors must understand the method used
to calculate the index in order to understand how conditions in the market for the component
securities used to calculate its value may affect the value of the index. Investors may fail torealize their investment objective even if they have correctly predicted certain events if they do notunderstand how those events may or may not affect the level of the index. The component securities
of an implied volatility index are put and call options (not stocks, which are the component securitiesof stock indexes). A realized variability index, on the other hand, measures the actual volatility of
an index and is calculated directly from the values of the reference index. There is no assurance
that predicted volatility as measured by a particular implied volatility index will correspond to theactual volatility of the reference interest or to measures of predicted volatility calculated using othermethods. A strategy-based index may be calculated from the prices of multiple component securities
of different types, such as in the case of a buy-write index measuring the return of a strategy thatinvolves transactions in stocks and options. The return from a particular strategy as measured bya strategy-based index may differ from the actual returns that an investor following that strategy
achieves, because of assumptions regarding transactions and the failure to take into accountsignificant factors such as taxes and transaction costs. Different relative performance indexes may
measure relative performance in different ways. Investors should contact the listing options market
for information on the method of calculation of a particular variability index, strategy-based index
or relative performance index.
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CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

13. Persons who exercise variability options, strategy-based index options or relative
performance options or are assigned exercises based on an erroneous index level willordinarily be required to make settlement based on the exercise settlement value as
initially reported by the designated reporting authority for the index, even if a correctedvalue is subsequently announced. In extraordinary circumstances (e.g., where an exercise
settlement value as initially reported is obviously wrong, and a corrected value is promptly
announced), OCC has discretion to direct that exercise settlements be based on a corrected
exercise settlement value. Ordinarily, however, the exercise settlement value as initially reportedby the designated reporting authority for the underlying variability index will be conclusive forexercise settlement purposes. As described in numbered section 8 with respect to other indexes,
reported levels of a variability index, strategy-based index or relative performance index may bebased on non-current information. This may occur as a result of delays or interruptions in themarket for the reference security or the component securities of the underlying index or thereference index (which are the same in the case of realized variability indexes).
14. As in the case of writers of other index options, writers of variability options, strategy-based
index options or relative performance options cannot provide in advance for their potential
settlement obligations by acquiring the underlying interest. Offsetting the risk of writinga variability option, strategy-based index option or relative performance option may be evenmore difficult than offsetting the risk of writing other index options. Even where some offsettingof risk is possible, there are timing risks and other risks analogous to those discussed in
numbered sections 3 and 4 above whenever an investor attempts to employ strategies involving
transactions in variability options, strategy-based index options or relative performance options
and transactions in stocks or in options, futures contracts or other investments related to stocks.
15. Holders and writers of delayed start options bear the risk that the index level used to
calculate the exercise price on the exercise price setting date may be unavailable or incorrector that the options market may incorrectly calculate the exercise price. Numbered section
5 of this section discusses some of the risks of an erroneously reported index level to a person
buying, selling, or exercising an option, or who is assigned an option exercise, based on theerroneous index level. Similarly, persons who are holders or writers of delayed start options on
the exercise price setting date bear the risk that an erroneously reported index level will be used
to set the exercise price. There is the additional risk that a correct index level will be used, but
the options market will calculate the exercise price incorrectly. Once a series of delayed start
options is opened for trading on the day after the exercise price setting date, even if a correctedindex level is later reported, or if it is later discovered that an exercise price was set incorrectly,
the exercise price will not be corrected to account for such errors.
16. The reported values of dividend indexes may be affected by factors other than the financial
ability of the issuers of the component securities of a dividend index to pay cash dividends.
For example, an issuer’s determination to pay stock dividends in lieu of cash dividends or toforego payment of cash dividends notwithstanding its ability to do so may affect the level ofa dividend index.
17. In the event that one of the index components of a relative performance index is eliminatedas a result of a cash-out merger or other event, the reporting authority may cease to
publish the value of the relative performance index and the market on which options onthat relative performance index are traded may determine to accelerate the expiration
date of the options (and, in the case of European-style options, their exercisability). In thatcase, the exercise settlement value of the options would become fixed based upon the last
published value for the underlying relative performance index. As a result, all such options thatare not in the money will become worthless and all that are in the money will have no timevalue. Holders of an in-the-money option whose expiration date is accelerated must be prepared
to exercise that option prior to the accelerated exercise cut-off time in order to prevent theoption from expiring unexercised. Writers of a European-style option whose expiration date is76

CHAPTER X: PRINCIPAL RISKS OF OPTIONS POSITIONS

subject to being accelerated bear the risk that, in the event of such an acceleration, they may be
assigned an exercise notice and be required to perform their obligations as writers prior to theoriginal expiration date. As with any other option for which the expiration date is accelerated,
no adjustment would be made to compensate for the accelerated expiration date of a relative
performance option.

Special Risks of Debt Options
The risks described in numbered sections 1 through 9 of this section relate to debt options otherthan options on index-linked securities. The risks described in numbered sections 10 and 11
relate exclusively to options on index-linked securities.
1. Many of the special risks associated with debt options result from the character of the markets inwhich the underlying debt securities are issued and traded and the distinctive characteristics ofdebt securities. The vast majority of the trading activity in bonds and money market instruments
takes place in a dealer market. Dealers typically maintain markets in all outstanding issues ofTreasury securities, but most of the activity tends to center on recently issued securities. Liquidity
is generally greater and quotations are generally tighter on recent issues than on older issues.
There are numerous dealers in all of the Treasury securities from which the yield on theoptions now traded is determined, but at the date of this document there is no comprehensive
consolidation of bids and offers or public reporting of transaction prices in those securities suchas exists in the markets for stocks. While there is some dissemination of representative bids andoffers, at the date of this document anyone interested in buying or selling a Treasury security
usually must have his brokerage firm or bank contact one or more dealers individually to learn
their current quotations.
The absence of last sale information and the limited availability of quotations for debt
instruments can make it difficult for many investors to obtain timely, accurate data about
the state of the market for the underlying debt securities. At the same time, dealers in theunderlying securities have access to private quotation networks that give actual current bids
and offers of other dealers. This information may not be available to investors. As a result, thesedealers may have a significant advantage over other participants in the debt options markets.
2. Another important difference between the stock market and the market for Treasury securities isthat stock quotations are generally keyed to a 100-share round lot while the basic unit of tradingin the debt securities market typically involves much larger dollar amounts. A round lot for mostdealers in Treasury securities is, at a minimum, $1,000,000 of principal amount; and on Treasury
bills it can be larger. Most dealers are oriented toward doing business with large institutionalcustomers or other dealers. As a result, investors buying or selling debt securities in amounts smaller
than round lots can expect to pay more and receive less than dealer quotations for round lot
transactions.
The unit of trading for price-based debt options is likely to involve larger dollar amounts of
the underlying debt security than is the case with stock options. In general, this means that:(a) premiums for such an option will tend to be higher than for a stock option, and (b) the
increase or decrease in the price of an option that is associated with any given change in theprice of the underlying security will tend to be larger for many such debt options.
If the unit of trading for a physical delivery price-based debt option is smaller than
$1,000,000, investors who buy or write options covering principal amounts other thana multiple of $1,000,000 may be disadvantaged by having to deal in an odd-lot market
for the underlying debt security at prices that are less favorable than for round lots.

77CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

3. In the event of a shortage of the underlying debt security deliverable on exercise of aphysical delivery price-based debt option, OCC has the authority to permit other generallycomparable securities to be delivered in fulfillment of the delivery obligation. If OCC exercises
its authority to allow such other securities to be delivered, it may also adjust the exercise pricesof the affected options by setting different prices at which otherwise non-eligible securities may
be delivered. As an alternative to permitting such substitute deliveries, OCC may impose special
exercise settlement procedures similar to those applicable to stock options, including the fixing ofa cash settlement price payable by writers who would otherwise be unable to meet their delivery
obligations (see “Settlement” in Chapter VIII), and/or prohibit the exercise of puts by holders who
would be unable to meet the resulting settlement obligations (see numbered section 5 under “Risks
of Option Holders” above).
4. The hours of trading for debt options may not conform to the hours during which the debt
securities are traded. To the extent that the options markets close before the markets for theunderlying or other related instruments, significant price and rate; movements can take place inthe underlying markets that may not be reflected in the options markets. The possibility of such
movements should be taken into account in relating closing prices in the options markets to thosein the underlying markets. In addition, there is a risk that debt options may be exercised on the basisof price movements in the underlying security after the close of trading in the options markets when
writers are no longer able to close out their short positions.
5. Because exercises of yield-based options are settled in cash, option writers cannot fully provide
in advance for their potential settlement obligations by acquiring and holding the Treasury
security from which the underlying yield is determined. A writer of a yield-based option cantheoretically offset most of the risk of his writing position by acquiring Treasury securities of thedesignated maturity period on which the underlying yield is based. Offsetting risk in this way may
be difficult to do in practice, however. While it is possible at any given time to calculate the principal
amount of Treasury securities needed to assure that the risk of the option position is offset, suchcalculations are based upon complex mathematical relationships. Moreover, the principal amountof Treasury securities needed to assure that the risk of an options position is fully offset will
generally not remain constant throughout the life of the option, but instead will fluctuate as a resultof changes in yields and remaining time to maturity. For a given percentage change in yield, thisfluctuation will be greater for securities of longer maturity periods than for securities of shorter
maturity periods. Furthermore, there can be no assurance that an option writer will be able to sell
the Treasury securities that she holds at the option’s expiration at the same average yield that isused in calculating the exercise settlement value of the option. Prices, and therefore yields, could
differ from dealer to dealer. Moreover, when dealer quotations are averaged in obtaining a yield,
they may result in a value which varies from the value that would be obtained by averaging yields
representing actual transactions for the same securities during the same time period.
6. Investors in yield-based debt options run the risk that reported yields may be in error. The
values disseminated by the designated reporting authority of the options markets during trading
and for exercise settlement purposes will ordinarily be averages or medians of dealer quotations
or prices, and it is possible that errors could be made in the gathering or averaging of these values.
A person who buys or sells an option at a premium based on an erroneous reported yield value isbound by the trade and has no remedy under the rules of the options markets. Similarly, persons
who exercise options or are assigned exercises based on erroneous reported yields will ordinarily
be required to make settlement based on the value as initially reported by the reporting authority,even if a corrected value is subsequently announced. In extraordinary circumstances (e.g., where avalue as initially reported is obviously wrong and inconsistent with values previously reported, anda corrected value is promptly announced), OCC may direct that exercise settlements be based ona corrected value. Ordinarily, however, the value as initially reported by the official source will beconclusive for exercise settlement purposes.

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CHAPTER X: PRINCIPAL RISKS OF OPTIONS POSITIONS

7. A holder of a yield-based option who exercises it before the exercise settlement value ofthe underlying yield is available runs the risk that the level of the underlying yield may
subsequently change. If such a change causes the exercised option to fall out of the money, theexercising holder will be required to pay the difference between the exercise settlement value andthe exercise price of the option (times the applicable multiplier) to the assigned writer. A holder who
plans to exercise an option may be able to minimize this risk by withholding exercise instructions
until just before the exercise cut-off time fixed by his brokerage firm. However, he may not be able toeliminate the risk entirely. Exercise cut-off times for yield-based options may occur before definitive
exercise settlement values are announced. Because exercise cut-off times may vary from brokeragefirm to brokerage firm, and there may be different exercise cut-off times for different yield-based
options, option holders who anticipate exercising should determine the applicable cut-off times fromtheir brokers.
8. If for any reason there are no quotations available for the Treasury security from which underlying
yields of a yield-based option are determined, trading in the option may be halted. If trading is nothalted, reported yields may be based on non-current price information for the Treasury security.
9. If OCC determines that the exercise settlement value of the underlying yield for any series of yieldbased options is unreported, inaccurate, unreliable, unavailable, or inappropriate for purposesof calculating the cash-settlement amount of such series, OCC has the authority to suspend thesettlement obligations of the exercising and assigned Clearing Members of options of such series
or to fix the cash settlement amount for exercised options of such series or to do both. In the eventof such a suspension, OCC will fix a new settlement date after OCC determines that the exercise
settlement value is available or after OCC fixes the cash settlement amount.
If OCC determines to fix the cash settlement amount, it will act through a panel, comprised ofrepresentatives from each exchange on which the series without an exercise settlement value trades,that will use its judgment as to what is appropriate for the protection of investors and the public
interest. The panel may fix the cash settlement amount using the reported value of the underlying
yield (i) at the close of regular trading hours (as determined by OCC) on the last preceding trading
day for which such a value was reported by the reporting authority or (ii) at the opening of regular
trading hours (as determined by OCC) on the next trading day for which such a value was reported by
the reporting authority. Alternatively, the panel may fix the cash settlement amount using the value
for the underlying yield, or using a combination or average of such values, at or during such time ortimes that the panel sees fit.
If a panel delays fixing a cash settlement amount for a series of yield-based options past the last
trading day before expiration of that series, normal expiration exercise procedures will not apply
to the affected series. Instead, exercise settlement will be postponed until the next business day
following the day when the panel fixes the cash settlement amount, and each long position in theaffected series will be treated as having been exercised if the cash settlement amount per contract
for that series is $1.00 or more. If the cash settlement amount per contract is less than $1.00, theoption will be treated as having expired unexercised. As a result of these procedures, holders of
expiring yield based options may not know whether their options have been exercised, and writersof such options may not know whether they have been assigned an exercise notice, until after the
expiration date. A panel’s determinations shall be conclusive, binding on all investors, and not
subject to review.
10. In the event of a shortage of index-linked securities that are deliverable on exercise of a physicaldelivery option, OCC may impose special exercise settlement procedures similar to those applicableto stock options, including the fixing of a cash settlement price payable by writers who would
otherwise be unable to meet their delivery obligations (see the discussion in Chapter VIII under“Settlement”), and/or prohibit the exercise of puts by holders who would be unable to meet theresulting settlement obligations (see numbered section 5 under “Risks of Option Holders”).

79

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

11. In the event that an issuer of an index-linked security calls the entire issue of the security,
outstanding options on that issue will be adjusted to require delivery upon exercise of a fixed amountof cash. After such an adjustment, all options on that security that are not in the money will become
worthless, and all that are in the money will have no time value. Holders must be prepared toexercise the option to prevent the option from expiring unexercised, and writers must be preparedto perform their obligations prior to the accelerated exercise cut-off date. There is no assurance
that the exercise settlement date for an index-linked security option will coincide with the date on
which the cash payment to the holders of the underlying security becomes available from the issuer,and covered writers of an accelerated option therefore may be required to pay the cash amount inrespect of the option before they receive cash payment on the underlying security.

Special Risks of Foreign Currency Options
1. The value of any currency, including U.S. dollars as well as foreign currencies, may be affected bycomplex political and economic factors applicable to the country issuing that currency. The price ofa foreign currency option is dependent upon the value of the underlying foreign currency relative
to the trading currency as well as the value of both currencies relative to other currencies generally.
Fluctuations in the value of the trading currency — whether it is the U.S. dollar (in the case of a dollardenominated option) or a foreign currency (in the case of a cross-rate option) — will affect exchange
rates and the prices of foreign currency options, even in the case of an otherwise stable underlying
foreign currency. Conversely, fluctuations in the value of an underlying foreign currency will affectexchange rates and the prices of foreign currency options even if the value of the trading currency
remains relatively constant. Investors should consider factors affecting the economies and currency
values of both the country of origin for the trading currency and the country of origin for theunderlying currency. Although these same considerations apply to dollar-denominated options andcross-rate options, cross-rate options involve factors affecting the economies of at least two foreigncountries and may involve consideration by U.S. investors of factors affecting the U.S. economy
as well. Accordingly, a U.S. investor in cross-rate options may need to consider a broader range of
economic developments than a U.S. investor in dollar-denominated foreign currency options.
2. Even though the intrinsic value of an option is determined by the value of the underlying currency
relative to the trading currency, investors who intend to convert gains or losses into U.S. dollars orother currencies may be particularly affected by changes in the exchange rates between their “home”
currency and either the trading or the underlying currency.
EXAMPLE: Assume that an investor purchases a yen-denominated, at-the-money call option on
British pounds by converting U.S. dollars to Japanese yen. The British pound then appreciates
relative to the yen, and at expiration the exercise price is more favorable than the then current
exchange rate between yen and pounds. The investor could realize a gain in yen by converting dollars
to yen in order to purchase pounds at the exercise price and then reselling the pounds for yen at thecurrent exchange rate. If the amount of that gain exceeds the premium that the investor paid for the
option, the investor will realize a gain in yen on his investment in the option. However, if the yen has
depreciated relative to the dollar since the investor purchased the option, the gain may be reduced oreven converted to a loss when the yen are converted back to dollars. This is so because, although the
yen received upon the sale of the pounds may exceed the exercise price plus the premium paid in yen,
there is no guarantee that, when the yen are converted back to dollars at the current rate, the dollars
received will exceed the exercise price plus the premium paid in dollars. If the investor converts thepounds directly into dollars rather than to yen and then to dollars, the result would be the same
since the amount of the dollars received would be expected to be approximately the same, ignoring
any difference in transaction costs and any timing differences in the two-step process.

80CHAPTER X: PRINCIPAL RISKS OF OPTIONS POSITIONS

Similar considerations will apply if the investor liquidates his investment in a cross-rate option by
selling it rather than by exercising it.
EXAMPLE: Assume in the previous example that the premium value of the call option has increased
permitting the investor to liquidate his investment in the option by selling it for more yen than hepaid for it. If the exchange rate between the U.S. dollar and the Japanese yen has not changed, theinvestor should be able to convert the yen received on the sale of the option to a U.S. dollar amountgreater than his original investment. If, on the other hand, the yen has declined in value relative to
the U.S. dollar, the investor’s gain in yen may be reduced or converted to a loss when the premium
received on the sale of the option is converted to dollars.

3. The exchange rates of foreign currencies (and therefore the prices of foreign currency options) could
be significantly affected, fixed or supported directly or indirectly by government actions. Government
actions could increase risks to investors in both dollar-denominated and cross-rate options if
exchange rates were not free to fluctuate in response to other market forces.
4. Because foreign currency transactions occurring in the interbank market involve substantiallylarger amounts than those likely to be involved in the exercise of individual foreign currency option
contracts, investors who buy or write foreign currency options may be disadvantaged by having
to deal in an odd lot market for the underlying foreign currencies at prices that are less favorable
than for round lots. Because this price differential may be considerable, it should be taken into
account when assessing the profitability of a foreign currency option transaction that will involvethe exchange of one currency for another.
5. There is no systematic reporting of last sale information for foreign currencies. There is reasonably
current, representative bid and offer information available on any market where foreign currency
options are traded, in certain brokers’ offices, in bank foreign currency trading offices, and to others
who wish to subscribe for this information. There is, however, no regulatory requirement that thosequotations be firm or be revised on a timely basis. The absence of last sale information and thelimited availability of quotations to individual investors may make it difficult for many investors to
obtain timely, accurate data about the state of the underlying market. In addition, the quotation
information that is available is representative of very large round lot transactions in the interbank
market and does not reflect exchange rates for smaller odd lot transactions. Since the relatively small
amount of currency underlying a single foreign currency option would be treated as an odd lot in theinterbank market, available pricing information from that market may not necessarily reflect prices
pertinent to a single foreign currency option contract.
The quotation information available to investors may be from sources that are different from thoseused to calculate the exercise settlement value of cash-settled foreign currency options. An investor
who attempts to realize the intrinsic value of such an option through an exercise rather than by
selling the option in a closing transaction runs the risk that the exercise settlement value may be lessthan appears from the information then available to him.
6. Foreign governmental restrictions or taxes could result in adverse changes in the cost of acquiring or
disposing of foreign currencies. If OCC determines that such restrictions or taxes would prevent theorderly settlement of delivery foreign currency option exercises or would impose undue burdens onparties to exercise settlements, it has authority to impose special exercise settlement procedures,
which could adversely affect some investors.
7. The interbank market in foreign currencies is a global, around-the-clock market. Therefore, the hoursof trading for foreign currency options do not conform to the hours during which the underlying
currencies are traded. To the extent that the options markets are closed while the market for
the underlying currencies remains open, significant price and rate movements may take place in81

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

the underlying markets that cannot be reflected in the options markets. The possibility of such
movements should be taken into account in relating closing prices in the options markets to those in
the underlying markets. In addition, this creates a risk that foreign currency options may be exercisedon the basis of price movements in the underlying currency after the close of trading in the options
markets, when writers are no longer able to close out their short positions.
8. Since exercise settlement of physical delivery foreign currency options — whether they are dollardenominated or cross-rate options — occurs within the country issuing the underlying foreign
currency, investors must accept or make delivery of the trading and underlying foreign currencies
through their brokerage firms in conformity with any U.S. or foreign restrictions or regulations
regarding the maintenance of foreign banking arrangements by U.S. residents, and may be required
to pay any fees, taxes or charges associated with such deliveries.
9. Exercise settlement of physical delivery foreign currency options — whether they are dollardenominated or cross-rate options — is made through OCC’s correspondent banks in the country oforigin. Investors may be exposed to losses in the event that a correspondent bank should fail during
the settlement process.
10. As in the case of other cash-settled options, writers of cash-settled foreign currency call options
cannot fully provide in advance for their potential settlement obligations by acquiring and holding
the underlying interest. Although a call writer may hold the quantity of the currency underlying theoption, there is no assurance that if she is assigned an exercise she will be able to sell such currency
at the exercise settlement value.
11. If a cash-settled foreign currency option is exercised based upon a reported exercise settlement
value that is in error, the holder and the writer will ordinarily be obligated to make settlement basedon the exercise settlement value as originally reported, even if the value is subsequently revised ordetermined to have been inaccurate. In extraordinary circumstances (e.g., where the value as initiallyreported is obviously wrong and inconsistent with other available price information and a correctedvalue is promptly announced), OCC has discretion to direct that the exercise settlement be based on
the corrected value.
12. If OCC determines that the exercise settlement value for any cash-settled foreign currency option
is unavailable for purposes of calculating the cash settlement amount, OCC has the authority tosuspend the settlement obligations of the exercising holder and assigned writer of such option or
to fix the cash settlement amount based on the best information available to OCC, or to do both.
Accordingly, there is a risk to both holders and writers that the settlement of exercised cash-settled
foreign currency options may be postponed and may be based on a determination by OCC rather
than by the procedures specified by the options market on which the options are traded.
13. In addition to foreign currency options, options on foreign currency indexes also may be traded.
As discussed above under the heading “Special Risks of Index Options,” many of the special risks
applicable to options on stock indexes also apply to options on foreign currency indexes. In addition,
the risks applicable to foreign currency options described in numbered sections 1 through 3, 5, 7,
and 10 through 12 above generally apply to options on foreign currency indexes.

Special Risks of Flexibly Structured Options
In addition to the risks discussed above, the following special risks are applicable to flexibly
structured options.
1. Because flexibly structured options have variable terms that are fixed by the parties, there are no preestablished series of flexibly structured options. Rather, many different series of flexibly structured
options may be created and outstanding at any given time as a result of the various designations82

CHAPTER X: PRINCIPAL RISKS OF OPTIONS POSITIONS

of variable terms that are made in different transactions. Secondary trading interest in flexibly
structured options may therefore be spread over a larger number of series than the trading interest
in other options, the trading interest in any particular series of flexibly structured options may
be very limited, the secondary markets in flexibly structured options may be less deep, liquid andcontinuous than the markets in other options on the same underlying interests, and the premiums
for flexibly structured options may not correlate with premiums for such other options.
2. OCC may base its calculations of the margin requirements of OCC’s Clearing Members for positions
in a series of flexibly structured options on an estimate derived from data and factors OCC deems
pertinent in respect of quotations and transactions in that options series and in other options series.
Alternatively, OCC may fix such margin requirements at a level it deems necessary to protect therespective interests of OCC, the Clearing Members and the public. As a result, the Clearing Member’s
margin requirements for positions in flexibly structured options may differ from — and may besignificantly greater than — the margin requirements applicable to similar positions in other options
on the same underlying interest. Such differences may cause Clearing Members to require customers
that maintain positions in flexibly structured options to deposit more margin for flexibly structured
options positions than for positions in other options. To the extent OCC’s estimate of the current
value of a flexibly structured option is used in the determinations of the margin requirements of theBoard of Governors of the Federal Reserve System, the options markets and other self-regulatoryorganizations, it may also cause such margin requirements to be greater than they would be forother options.

Special Risks of Credit Default Options
1. Pricing of credit default options is complex. As stated elsewhere in this document, complexity not
well understood is, in itself, a risk factor. In order to price these options, investors must estimate theprobability of default from available security or other prices, primarily bond and credit default swap
(CDS) prices. Models typically used by market professionals to infer the probability of default fromprices may be more complex than the average investor is used to.
2. The sources of price information used to price credit default options are subject to a lack oftransparency and, at times, illiquid markets. This is attributable to, among other things:(1) the absence of last sale information and the limited availability of quotations for the reference
obligation(s), (2) lack of ready availability of information on related products traded primarily in theover-the-counter market, and (3) the fact that related over-the-counter market credit derivativetransactions are privately negotiated and may not be made public in a timely fashion or at all.
3. Dealers in the underlying debt securities and in the over-the-counter credit derivatives markets
have access to private quotation networks that give actual current bids and offers of other dealers.
This information is not available to most investors. As a result, these dealers may have an advantage
over participants with regard to credit default options.
4. If the listing options market determines that a credit default option is subject to a redemption event(i.e., the issuer or guarantor pays off the reference obligation), the option will expire worthless unlessa credit event has been confirmed to have occurred prior to the effective date of the redemption
event. As a result, purchasers of such options will lose their premium since there is no chance ofoccurrence of a credit event for the reference entity. On the other hand, if a redemption event occurs
but a credit event is confirmed to have occurred prior to the effective date of the redemption event, aseller would be obligated to pay the cash settlement amount even though a holder of the reference
obligation may not incur a loss.
5. Since succession events are determined by the listing options market, credit default options may
be modified to specify a different reference entity or several different reference entities. As a result,
there may be new reference obligations that have higher or lower credit quality than the original83

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

reference obligation. In addition, other factors may exist that could affect the likelihood of
the occurrence of a credit event. As a result, the occurrence of a succession event could affectthe price of these options. Moreover, since the listing options market determines whether asuccession event occurred and the adjustment resulting from such an event, the adjustment
made to these options may be at variance with the treatment given to the same succession
event with respect to related credit derivative products.
6. The occurrence of a credit event must be confirmed by the listing options market. This meansthat there will be a lag time between the actual occurrence of a credit event and the listing
options market’s confirmation of the credit event. Rules of the options market may provide
a specified time period (e.g., four business days) between the end of the covered period andthe expiration date for a series of credit default options to allow the options market to confirm
whether a credit event occurred during the covered period. There is a risk, however, that thesources used to monitor a credit event may not identify and report a credit event in a timely
fashion. For example, it is possible that a credit event could occur on the last day of trading, but
the sources which report the occurrence of a credit event do not make this information publicly
available until after the expiration date. In this case, the cash settlement value of a credit default
option would be zero. There is also a risk that the listing options market may determine that acredit event has occurred based on information available to it when in fact no credit event has
occurred. This could happen, for example, if the sources used to confirm the credit event are
erroneous. The rules of OCC and/or the listing options market may provide that a confirmationof a credit event or other contract adjustment may be revoked up to a specified time prior to
exercise settlement. Settlements based on a listing options market’s confirmation of a credit
event are irrevocable even if no credit event has occurred.
7. Every determination by the listing options market of a redemption event, succession event or
credit event will be within the listing options market’s sole discretion and will be conclusive andbinding on all holders and sellers and not subject to review. OCC shall have no authority to makesuch determinations and shall have no responsibility therefor.
8. Prior to the period when a credit default option has been automatically exercised, the only means
through which the holder can realize value from the option is to sell it at its then market price inan available secondary market. If a secondary market for such an option is not available, it will
not be possible for its holder to realize any value from the option at that time.
9. There is no underlying interest for credit default options that is quoted in the marketplace.
Because of this, there are no underlying interest prices to provide a reference to investors for
pricing credit default options.
10. As discussed above under the caption “Other Risks,” options markets have discretion to halt
trading in an option in certain circumstances — such as when the market determines that thehalt would be advisable in maintaining a fair and orderly market in the option. In the case ofcredit default options, options markets may take into consideration, among other factors, thatcurrent quotes for debt securities or other securities of the reference entity are unavailable orhave become unreliable.
11. The risk that a trading market for particular options may become unavailable and the potential
consequences are also discussed above under the caption “Other Risks.” The SEC has approved
certain credit default options for listing and trading on a national securities exchange as
securities. OCC filed its rules for clearing credit default options with the CFTC, and the CFTC
issued an exemption permitting OCC to clear such options when traded on a national securities
exchange whether or not they are within the CFTC’s jurisdiction. By its terms, the exemption isrevocable, and its revocation would be one of the events that could lead to the unavailability of a
trading market for credit default options.

84

CHAPTER X: PRINCIPAL RISKS OF OPTIONS POSITIONSSpecial Risks of Binary Options(Other Than Credit Default Options)
1. Risks of holders of binary options are similar to the risks described above applicable to holdersof other cash-settled, European-style options, but the holder of a binary option will not receive
any gain in excess of the fixed settlement amount of the option. Non-binary options, in contrast,
may provide greater return to the holder as the difference between the exercise price and theexercise settlement value of the underlying interest increases. A binary option is like a capped option in
the sense that its maximum return is limited. Unlike a capped option, however, the payout on a binary
option is all or nothing. Accordingly, with respect to a binary option, the holder may experience a
relatively greater gain than the holder of a non-binary option when the option is in the money by asmall amount but a relatively smaller gain when the option is in the money by a greater amount.
2. Binary options may be more difficult to hedge, or to use as hedges, than non-binary options.
Because of the fixed settlement amount to be realized from a binary option, an investor who wishes
to hedge the risk of an increase in the price of a specified quantity of a stock, for example, cannot
create a perfect hedge by buying a specified quantity of at-the-money binary options that returna cash settlement amount if the exercise settlement value of the underlying security is above thecurrent price of the stock. If the stock price at expiration of the option has risen only slightly above
the exercise price, the option payout may exceed the aggregate increase in the value of the stock. If
the stock price has risen substantially over the exercise price, the payout from the option may not be
sufficient to cover the excess. Similarly, an investor who writes a binary option on an individual stock
and wishes to hedge the obligation through ownership of the shares of the underlying stock would
not be able to do so precisely through the ownership of any specific number of shares.
3. Holders and writers of binary options may bear a heightened risk that they will be adversely
affected by manipulative behavior in the markets. Because a binary option that is in the moneyby even the smallest amount (or, in the case of certain binary options, at the money) will pay the full
fixed settlement amount, there may be an incentive for holders or writers of options that are at ornear the money at expiration to attempt to influence the exercise settlement value in order to cause
a series of options to expire either in or out of the money. Although opportunities for manipulation
may be greater when the underlying interest is an individual security than when it is an index, volume
weighted average pricing is used to determine the exercise settlement value of binary stock options
in order to reduce the likelihood of such manipulation. While market manipulation is unlawful
under the federal securities laws and SEC regulations, there can be no assurance that manipulation
affecting binary options will not occur. If manipulation does occur, exercise settlement values may bebased on the manipulated price and there may be no adequate remedy available to investors.
4. A writer of a binary option has risks similar to those of writers of other cash-settled, European-style
options except that the amount that the writer will be required to pay if assigned an exercise notice
is limited to the fixed settlement amount. Even though the potential loss is limited, writers of binary
options must have sufficient liquid assets to pay the fixed cash settlement amount and the financial
capacity to bear that potential loss.
5. A writer of a binary option will be obligated to pay the entire fixed cash settlement amount,even if the exercise settlement value is only slightly in the money or, in the case of certain
binary options, at the money. Investors should be aware of the criteria for automatic exercise of thebinary options that they purchase or write. Binary stock options may be different in this regard frombinary index options, and binary options traded on one options market may have different terms
from those traded in other options markets.
6. A binary option that has an exercise price at or near the current price or level of the underlying
as the expiration date approaches may be more volatile and therefore involve more risk than a
non-binary option.
85

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONSSpecial Risks of Range Options
1. Range options have a unique payout structure. Whereas other cash-settled options (other thanbinary options) provide an increasingly greater return to the option holder as the difference between
the exercise price and the level of the underlying interest increases, a range option’s potential payout
increases through the lower range until it reaches the maximum cash settlement amount, remains
at the maximum cash settlement amount through the entire middle range, and then decreases tozero as the level of the underlying interest moves through the high range. Therefore, a range option
holder must not only be right about the timing of an anticipated change in the level of the underlying index, but she must also be right about the degree of the change because the option will have a
reduced payout or drop out of the money altogether if the underlying index moves too far in either
direction. In that case, a range option holder may lose all or a significant part of her investment in
the option. On the other hand, the direction in which the underlying index moves will not affect thepayout for a range option as long as it stays within the middle range.
2. The writer of a range option, like writers of other cash-settled options, runs the risk that theoption will expire in the money and he will be required to pay the cash settlement amount. The
writer’s potential loss is limited to the maximum cash settlement amount of the option minus thepremium received. Actual loss will depend on where the level of the underlying index falls within
the range length.
EXAMPLE: An investor receives a premium of $10 for writing a range option on XYZ index that has
a maximum cash settlement amount of $100. Assume that the option has a low range from 90 to100, middle range from 100 to 110, and a high range from 110 to 120. If the level of the XYZ index
at expiration is 100 (i.e., falls in the middle range), the investor will incur a loss of $90 (the $100
paid to the holder of the option less the $10 premium received when the option was written). If thelevel of the XYZ index at expiration is in the low range or the high range, the profit or loss incurredby the investor will depend on where along the low range or high range the index level falls
at expiration.

3. Range options may be more difficult to hedge, or to use as a hedge, than other types of options
because of range options’ unique payout structure. A range option would be a perfect hedge only fora risk exposure to the underlying interest that varies with the level of the underlying interest in thesame unique way as the payout structure of the range option. In addition, as in the case of a binary
option, it is not possible to precisely offset the risk of writing a range option through ownership of
the underlying interest.

86CHAPTER XI

Scope and Limitationsof This Document
Readers should be aware of the scope and limitations of this document set forth below:
1. This document has been prepared by the U.S. options markets for distribution pursuant to therequirements of SEC Rule 9b-1 under the Securities Exchange Act of 1934 and the rules of the U.S.
options markets. This document is not intended to meet other requirements which may be ineffect in any jurisdiction and should not be relied upon for that purpose.
The options discussed in this document are exempt from the registration requirements of the
Securities Act of 1933, as amended, and this document is not a prospectus. Nothing in thisdocument should be construed as furnishing investment advice or as being a recommendation,
solicitation or offer to buy or sell any option or any other security.
2. Only the U.S. options markets on which an option is authorized to be traded are responsible
for the statements in this document concerning that option.
3. The options markets do not intend this document to be incorporated by reference into any
publication that may be prepared or distributed by OCC, an options market or any other person(other than a document that has been specifically designated to be a supplement to this document
and that has been filed with the SEC pursuant to Rule 9b-l). The fact that another document
states that this document is available, or states from whom this document may be obtained, or
recommends that this document be read and understood, does not mean that this document
has been incorporated by reference into that other document.
4. No other publication is incorporated by reference into this document. The fact that this document
refers to information that may be available in other publications does not mean that any of thoseother publications has been incorporated into this document.
5. This document does not attempt to present a complete description of all of the provisions
governing options. These are set forth in applicable laws, in the rules and regulations of the SEC
and other regulatory agencies, and in the rules, interpretations, policies and procedures (collectively
called “rules”) of OCC, the options markets and the foreign clearing houses that act as “associate
clearing houses” of OCC that may be in force from time to time.
This document also does not attempt to describe either the rules that govern the structure
or conduct of options trading or the forms and procedures for trading in the various options
markets. These matters differ from one options market to another, and they may change from time
to time. As examples, the various options markets may utilize different market-making systems (withsome markets using a specialist system, others a competing market-maker system, and others a
combination of the two), order routing systems, and automatic order execution systems. Moreover,as advances are made in computer technology, the trading and market-making systems and theother trading procedures of the options markets are likely to evolve and change — or even be radicallydifferent from what they now are.
At particular times — such as when unusual conditions or circumstances exist, which for example
may occur on and after days on which there have been substantial or volatile price movements inthe securities markets generally or in the markets for underlying or related interests — the options
markets may have authority under their rules to modify the application of some or all of their trading
rules and procedures or to take such actions as they may deem appropriate in the circumstances.
Such actions could include, among other things, changing the manner in which trading in particular

87

CHARACTERISTICS AND RISKS OF STANDARDIZED OPTIONS

options is conducted, extending trading hours for particular options, halting trading in particular
options, restricting the types of orders that may be employed, and modifying or eliminating thebid/asked differential at which market-makers or specialists may quote. The taking of such actions
by an options market often is promptly disclosed to the trading crowd in that options market, torepresentatives of brokerage firms that are members of the options market, and/or to price vendors,
but the actions may be taken without public notice, and there can be no assurance that disclosure
will be made in a manner that will permit investors to learn of the actions in a timely way.
OCC and the options markets have broad discretion under their rules to take a variety of actions
in particular circumstances, and readers should not assume that any organization will exercise its
discretion in a particular way in any particular circumstance. A statement in this document to theeffect that OCC or an options market has authority or discretion to take a particular action does notmean that it will necessarily take that action. To the contrary, it should be understood from such astatement that the organization also has authority not to take that action. Moreover, it should beunderstood that OCC and the options markets have broad discretion in the manner in which theyinterpret their own rules.
OCC and the options markets have no duty to enforce, or to oversee the enforcement of, each other’srules. OCC and each U.S. options market has a general statutory obligation to enforce compliancewith its own rules by its own members. However, there can be no assurance that all such rules will
always be complied with by members, since frequently the only means of enforcing compliance withrules is to impose disciplinary sanctions after the fact on those who have violated them.
Readers desiring information concerning the rules of OCC or any of the options markets as to theterms of options, the manner in which options are traded or in which a market functions, the trading
hours of a particular options market, or other related matters, or information concerning any of theother matters referred to herein, may obtain the information from the relevant organization.
6. The U.S. options markets have rules applicable to the handling of customer accounts and theexecution of buy and sell orders that impose special requirements with respect to approval ofcustomer accounts for options trading and recommendations of particular option transactions. This
document does not attempt to describe those requirements, the laws and rules governing brokeragefirms and other securities professionals, or the agreements, procedures and internal rules ofbrokerage firms that are applicable to the approval and opening of customer accounts, the handlingand execution of orders, the transmission to brokerage firms of instructions to exercise or not toexercise options, the manner or time in which writers of options are notified by their brokeragefirms that options have been assigned an exercise, the handling of customers’ funds, securities
and accounts, the safeguarding of customers’ positions in options, or other matters relating to
the handling of options transactions by brokerage firms. Readers should consult with their own
brokerage firms for information concerning such matters.
7. This document does not attempt to describe the risks to investors that may be associated withthe way trading is conducted in any particular options market or in any market for an underlying
or related interest. The reader should not assume that either the options markets or the markets forunderlying or related interests will be efficient, liquid, continuous and orderly in all circumstances orthat they will be or remain open at all times. Even on relatively normal days, there will be variancesin the market-making performance of specialists and market makers in the various markets which
derive primarily from differences in individual skills, capital, willingness to accept risk, ability tohedge risk, trading strategies, and market-making obligations, and these variances are likely to be
exacerbated during times of greatly increased volume or volatility. Although specialists and market
makers in some markets have certain obligations to assist in the maintenance, so far as is practicable,of a fair and orderly market, traditional indicators of orderliness are difficult to apply to the trading ofderivative products such as options and there is a risk that the market-making system of a particularmarket will not operate effectively, efficiently or in an orderly manner at particular times. The natureand scope of that risk are not among the types of risk discussed further in this document.
88

CHAPTER XI: SCOPE AND LIMITATIONS OF THIS DOCUMENT

It is also possible that the systems of an options market, or of a market for an underlying or
related interest, may fail or may not work effectively or efficiently at times. Historically, forexample, the operations of various U.S. markets have been disrupted by earthquake, flood, fire,electricity outages, and computer failure. Moreover, no system can be expected to work perfectly
at all times. The options markets may rely on manual methods to record trade information, anderrors or omissions can occur in their reports of price, volume and other information, and thesecan be expected to be exacerbated on days of significant volume or volatility.
It is also beyond the scope of this document to discuss the risks that may result to investors fromthe use by market participants of options pricing theories. There are a number of publications
that are commercially available which discuss such theories.
8. This document does not attempt to describe risks that may be inherent in an investmentin the underlying interest. It is obvious that the investment potential of an option can bedependent on the performance of the underlying interest and that investors in options are
therefore subject to the risks that may affect the value of that interest. For example, one of therisks undertaken by a purchaser of a call option (or a writer of a put option) on XYZ stock is that
XYZ may decline in price during the life of the option. The risk of this decline is dependent on therisks that may affect the economy or the stock market generally or XYZ specifically. Similarly, theholder of a dollar-denominated option on a foreign currency is subject to the risk factors affecting
the relative values of the U.S. dollar and the foreign currency. A discussion of these types of risks
is beyond the scope of this document.
9. This document does not attempt to describe systemic risks that could affect the options
markets and the investors in those markets. The options markets, like all securities markets,
are interrelated with, and frequently interdependent upon, other aspects of national andinternational financial and capital systems and upon the national and world economy. Any
disturbance or crisis of one part of these interrelated systems could severely disrupt or eventhreaten the performance of the options markets or of OCC. Bank failures, payments breakdowns,
large and sudden economic shocks, the failure of a large securities firm, market or clearingorganization, or other such events could cause other failures on a widespread basis and could
affect the liquidity and solvency of the participants in the options markets. The specific causesof systemic failure or disruption are not easy to predict, and a discussion of them is beyond thescope of this document.
10. All examples in this document are based on hypothetical values that are not necessarily
indicative of the prices in an actual transaction. Readers should not assume that options will
necessarily be priced in accordance with any example in this document or in accordance with any
pricing formula or model. As noted in the discussion of “Premium” in Chapter II, option premiums
are not fixed by OCC or any of the options markets.
11. The examples in this document do not include tax consequences, commissions or othertransaction costs, nor do they include the impact of applicable margin requirements. As
discussed in Chapter IX, these items can be very significant and should be taken into accountby all investors.

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Notice of Current Amendment(March 2023)
This document may be amended from time to time, resulting in the addition, deletion, or
modification of content. Each time this document is amended, changes to the content will beincorporated into the document and provided in this chapter.
This chapter details the changes made to the document with underlined text indicating new text
added and strikethrough text indicating text deleted. The substantive changes made to the previous
version of this document are below and include additional language to (i) accommodate cash-settled
flexibly structured options on certain fund shares that meet specified criteria as defined in the rulesof the options market, (ii) provide additional details on the fungibility of flexibly structured options
with standardized options, and (iii) address a scenario where an underlying security price may not be
available and the resulting implications for cash-settled flexibly structured options on certain fundshares. Additionally, this chapter updates language describing when trading in a.m. settled index
options may not occur in relation to an option expiration date and, in unusual circumstances due tomarket closures.
The following changes are made to update language to accommodate cash-settled flexibly structured
options on certain fund shares that meet specified criteria as defined in the rules of the options
market and provide additional details on fungibility.
The first paragraph under Special Features of Flexibly Structured Options on page 52 is amended
as indicated below.
DESIGNATION OF TERMS — The parties to an opening transaction in flexibly structured options
may designate the option’s variable terms in accordance with the rules of the options market where
the transaction occurs. Included among the terms that an options market may identify as variable
terms are the specification and amount of the underlying interest, whether the transaction involves
a put, call or spread, the style of the option, the exercise price, the cap interval of a capped option,
the expiration date, the method for determining the exercise settlement value of a cash-settled
option that is exercised on the expiration date, the settlement currency of a cash-settled option, thepremium currency, and the trading currency of a foreign currency option. Flexibly structured options
are permitted in options that do not have the same exercise price, the same expiration date, thesame exercise style (e.g., American or European), and, with respect to index options only, the same
settlement style (e.g., A.M.-settled) as standardized options already trading on the same underlying
interest. Although flexibly structured equity options generally physically settle, an options market
may list for trading cash-settled flexibly structured options on certain fund shares that meet specified
criteria as defined in the rules of the options market. If trading is available in flexibly structured
options on certain fund shares that settle on a cash basis in accordance with exchange rules, it islikely that trading will also be available in options on the same underlying fund shares that settle
physically. In such a situation, the option that settles in cash will be separate and distinct fromthe option that physically settles on the same underlying fund shares. The settlement method forflexibly structured options is established prior to an option trade and does not change except thatthe settlement method for physically-settled flexibly structured options may change in the event of acontract adjustment whereby the underlying fund shares of an option are converted entirely to cash.
Such contract adjustments are discussed in Chapter III.
The third full paragraph on page 53 is amended as indicated below.
POSITION and EXERCISE LIMITS — The options markets may establish special position and exercise
limits for flexibly structured options. Such limits may differ from the limits applicable to otheroptions, although an options market may require that positions in certain flexibly structured options
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NOTICE OF CURRENT AMENDMENT MARCH 2023)

be aggregated with positions in certain other options. Positions in cash-settled flexibly structured
options on certain fund shares that meet specified criteria as defined in options market rules will
be aggregated with all positions in physically-settled options, including standardized options on
the same underlying fund shares in accordance with options market rules. Information concerning
position and exercise limits of particular flexibly structured options may be obtained from the options
market where the options are traded or from brokerage firms.
These two paragraphs are added at the end of page 53 and the beginning of page 54.
FUNGIBILITY
In the event that a standardized option is listed for trading with the same exercise price, the same
expiration date, the same exercise style (e.g., American or European), and, with respect to index
options only, the same settlement style (e.g., A.M.-settled) as a flexibly structured option alreadytrading on the same underlying interest, all existing positions on the flexibly structured option may
be consolidated into the identical standardized option in accordance with options market rules,
thereby eliminating trading in the flexibly structured option. Investors should be aware that whensuch a position consolidation occurs, existing positions under the flexibly structured option will
move to the identical standardized option. For example, if a physically-settled standardized option islisted for trading with the same exercise price, the same expiration date, and the same exercise styleas an already trading physically-settled flexibly structured option, a consolidation will be processedas permitted under options market rules whereby all existing positions on the physically-settled
flexibly structured option will be moved so that the option positions are established in the identicalstandardized option and trade only in the standardized option market.
As stated previously, an options market may list for trading flexibly structured options on certain
fund shares that meet specified criteria as defined in the rules of the options market and that settle
in cash. Physically-settled flexibly structured options and cash-settled flexibly structured options on
the same underlying fund shares are not fungible with each other, and likewise, standardized options
on fund shares are not fungible with cash-settled flexibly structured options on the same underlying
fund shares. Consequently, investors should be certain they know and understand the settlement
method for the specific flexibly structured options that they intend to trade.
The following changes are made to address a scenario where an underlying security price may not
be available and the resulting implications for cash-settled flexibly structured options on certain
fund shares.
This paragraph is added as the last paragraph to numbered section 3 on page 69.
In the event that the underlying security of an option is not trading or a price cannot be obtained
or is otherwise unavailable on the expiration date for an option contract, OCC may, in its discretion,
fix a closing price on such basis as it deems appropriate for the circumstances, including, without
limitation, using the last sale price during regular trading hours on the most recent trading day forwhich a last sale price is available. Although this situation may occur infrequently, if the last available
trading price or other value as deemed appropriate is used for expiration processing, option holders
and writers with expiring positions on flexibly structured options on certain fund shares that settle
in cash bear the risk that the cash settlement amount may be based on the last price available orother value as deemed appropriate and such price or value may not reflect the current value of theunderlying security at the time of expiration.
The following changes are made to clarify when trading in a.m. index settled options may not occur inrelation to an option expiration date, depending on the circumstances.
The following changes are made to Risk #7 on page 73.

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Cash-settled index options whose exercise settlement values are based on the opening prices of theconstituent securities are not traded on the last scheduled trading day for those for those securities
prior to the option expiration date, regardless of whether trading occurs on the expiration date forthe constituent securities of the index. If the option expiration date falls on a day when the markets
are scheduled to be closed (e.g., a holiday), cash-settled index options whose settlement values
are based on the opening prices of the constituent securities may not trade on the day prior to the
expiration date. If the option expiration date falls on a day when the markets are closed due to anunscheduled event (e.g., a natural disaster), cash-settled index options whose settlement values
are based on the opening prices of the constituent securities may not trade on the day prior to
the expiration date depending on the circumstances and timing of the event leading to the market
closure. In the uncommon event of an unscheduled market closure or a scheduled market closurethat is also an expiration date for cash settled index options, OCC will publish an information memo
on its website to identify the settlement prices to be used for cash settled products, and investors
should reference this information to determine when trading in a cash-settled index option will not
be available on the day prior to the expiration of such options.
Since A.M. cash-settled index options are not traded on the expiration date and, if applicable in thecase of a scheduled or unscheduled market closure, are not traded on the day prior to the option
expiration date, an option holder will be able to realize value from his option on such expiration
day or day prior to the expiration date, as the case may be, only if the option is in the money andis exercised. A writer of this type of option who has not previously closed out his position will be
unable to do so on that last trading day for the constituent securities and will be at risk of being
assigned an exercise.

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Archive of ODD Changes
January 2012 — Supplement accommodated options on
relative performance indexes of which the index components
are equity securities (including fund shares).

The list below provides a summary of all prior supplements
to and new versions of Characteristics and Risks of Standardized
Options (also known as the “Options Disclosure Document”
or “ODD”).

November 2012 — Supplement accommodated theintroduction of options originally listed to overlie less than
100 shares.

December 1997 — Supplement accommodated cash settled
options on indexes of mutual funds.
March 2000 — Supplement permitted (i) the acceleration of
exercise of options when the underlying security has been
converted into the right to receive a fixed amount of cash;and (ii) the automatic exercise of in-the-money flexibly
structured index options on the expiration date.

April 2015 — Supplement accommodated the introduction of
options on foreign currency indexes and the introduction of
implied volatility options whose exercise settlement value iscalculated differently than that of existing implied volatility
options. This supplement was amended and restated in its
entirety by the October 2018 Supplement.

January 2004 — Supplement (i) permitted greater flexibility
in the methods used for assigning options exercises; and (ii)addressed special considerations with respect to deadlines forthe exercise of certain options that expire on a day on which
an options market is open for trading.

October 2018 — Supplement (i) accommodated theintroduction of options on foreign currency indexes and theintroduction of implied volatility options whose exercise
settlement value is calculated differently from other existing
implied volatility options, (ii) addressed certain aspectsof contract adjustments related to the OCC’s authority
to determine contract adjustments and how certain
adjustments may affect an option’s value, and (iii) addressed
the change in the regular settlement for option exercises tothe second business date following exercise.

April 2007 — Supplement accommodated non-rate modified
cash-settled foreign currency options and rate-modified cashsettled foreign currency options.
May 2007 — Supplement (i) reflected modifications madeto the definition of “ordinary cash dividend or distribution;(ii) reflected changes made to eliminate the need to roundadjusted exercise prices in certain circumstances and toprovide more precise compensation for fractional shareseliminated by rounding; (iii) accommodated options on
interests in investment companies and similar entities;(iv) addressed special exercise settlement procedures or
restrictions that may be imposed upon the occurrence of
certain extraordinary events; (v) disclosed that a registration
statement and prospectus for the options covered by the
ODD are no longer available; (vi) explained OCC’s authority
to adjust the multiplier for yield-based treasury options andto fix a cash settlement amount for such options in certain
circumstances; (vii) addressed the adoption of rules by certain
options markets that permit, in very limited circumstances,the cancellation or adjustment of a transaction entered into
at a premium based on an erroneously reported value forthe underlying interest; and (viii) addressed accelerationof the expiration date of options on equity securities incertain circumstances.

October 2021 (ODD Restatement and Supplement) —The October 2021 version of the ODD incorporated all priorsupplements into the 1994 version of the document. It also(i) updated exchange information, (ii) removed references
to options trading on foreign markets, (iii) added language
indicating not all products described in the ODD may trade at
any given time, (iv) modified or removed obsolete language
such as references to currencies that no longer exist, methodsof obtaining index closing prices and private quotations,market wide trading halts and the prohibition of buying
options on credit, (v) removed all references to an OCC
Prospectus, (vi) removed the contract methodology was
only in effective for special dividends announced before
February 1, 2009, and (vii) removed all references to fractional
strike prices. This consolidated version of the ODD also
included supplemental material to accommodate theintroduction of a third type of implied volatility option withan exercise settlement value that is calculated differently
from other existing implied volatility options.

June 2007 — Supplement accommodated credit default
options. This supplement was amended and restated inits entirety by the January 2011 Supplement.

March 2022 — The March 2022 version (i) added language
highlighting that index products may have a multiplier otherthan 100 as established by the listing exchange by providing
examples of index options with a one dollar multiplier and(ii) included 2022 ODD administrative corrections to chapter
subtitles found in the original text of the ODD.

June 2008 — Supplement accommodated delayed start
options, binary stock options, binary index options andrange options.

March 2023 — The March 2023 version (i) accommodates
cash-settled flexibly structured options on certain fundshares that meet specified criteria as defined in the rulesof the options market, (ii) provides additional details on thefungibility of flexibly structured options with standardized
options, (iii) addresses a scenario where an underlying security
price may not be available and the resulting implications for
cash-settled flexibly structured options on certain fund shares,and (iv) updates language describing when trading in a.m.
settled index options may not occur in relation to an option
expiration date and, in unusual circumstances due tomarket closures.

December 2009 — Supplement (i) accommodated options
on variability indexes, strategy-based indexes and dividend
indexes; and (ii) addressed adjustment of stock option
contracts to reflect cash dividends or distributions on theunderlying securities.
May 2010 — Supplement accommodated options on
index-linked securities.
January 2011 — Supplement accommodated credit
default options.
March 2011 — Supplement accommodated options on
any single security volatility index and options on relative
performance indexes.
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