SUBMISSION COVER SHEET

IMPORTANT: Check box if Confidential Treatment is requested 

Registered Entity Identifier Code (optional): 23-456

Organization: Chicago Mercantile Exchange Inc. ("CME")

Filing as a: DCM SEF DCO SDR 

Please note - only ONE choice allowed.

Filing Date (mm/dd/yy): 11/01/23 Filing Description: Weekly Notification of 

Amendments Related to Product Terms and Conditions - Week of October 23, 2023

SPECIFY FILING TYPE 

Please note only ONE choice allowed per Submission.

Organization Rules and Rule Amendments

Certification § 40.6(a)

Approval § 40.5(a)

Notification § 40.6(d)

Advance Notice of SIDCO Rule Change § 40.10(a)

SIDCO Emergency Rule Change § 40.10(h)

Rule Numbers: 

New Product Please note only ONE product per Submission.

Certification § 40.2(a) 

Certification Security Futures § 41.23(a)

Certification Swap Class § 40.2(d)

Approval § 40.3(a)

Approval Security Futures § 41.23(b)

Novel Derivative Product Notification § 40.12(a)

Swap Submission § 39.5

Product Terms and Conditions (product related Rules and Rule Amendments)

Certification § 40.6(a) 

Certification Made Available to Trade Determination § 40.6(a)

Certification Security Futures § 41.24(a)

Delisting (No Open Interest) § 40.6(a) 

Approval § 40.5(a)

Approval Made Available to Trade Determination § 40.5(a)

Approval Security Futures § 41.24(c)

Approval Amendments to enumerated agricultural products § 40.4(a), § 40.5(a)

“Non-Material Agricultural Rule Change” § 40.4(b)(5)

Notification § 40.6(d)

Official Name(s) of Product(s) Affected: See filing. 

Rule Numbers: See filing. 
20 S Wacker Dr Chicago, IL 60606 T 312 466 7478 tim.elliott@cmegroup.com cmegroup.com

1

Timothy Elliott

Managing Director and Chief Regulatory Counsel

Legal Department

November 1, 2023

VIA ELECTRONIC PORTAL

Mr. Christopher J. Kirkpatrick

Office of the Secretariat

Commodity Futures Trading Commission

Three Lafayette Centre

1155 21st Street, N.W.

Washington, DC 20581

Re: CFTC Regulation 40.6(d) Notification. Chicago Mercantile Exchange Inc. (“CME” or 

“Exchange”) Weekly Notification of Amendments Related to Product Terms and 

Conditions.

CME Submission No. 23-456

Dear Mr. Kirkpatrick:

Pursuant to Commodity Futures Trading Commission (“CFTC” or “Commission”) Regulation 40.6(d), the 

Exchange submits this weekly notification of the following amendments related to product terms and 

conditions effective during the week of October 23, 2023.

Effective Sunday, October 22, 2023, for trade date Monday, October 23, 2023, the Exchange amended

Rule 256A01.J.4. (“Dynamically-Listed Exercise Prices”) of the Monthly and Weekly Friday Mexican 

Peso/U.S. Dollar (MXN/USD) options contracts and Rule 257A01.J. (Exercise Prices) of the Monthly and 

Weekly Friday Brazilian Real/U.S. Dollar (BRL/USD) options contracts (the “Contracts”) to reduce the 

dynamically-listed strike increment of the Contracts for trading on the CME Globex electronic trading 

platform (“CME Globex”) and for submission of clearing via CME ClearPort. The marketplace was alerted 

via Special Executive Report (“SER”) 9250, which is attached hereto as Exhibit A.

Should you have any questions concerning the above, please contact the undersigned at (312) 466-7478 

or via e-mail at CMEGSubmissionInquiry@cmegroup.com.

Sincerely, 

/s/ Timothy Elliott

Managing Director and Chief Regulatory Counsel

Attachment: Exhibit A – SER 9250
2

Exhibit A

Special Executive Report

DATE: September 5, 2023

SER#: 9250

SUBJECT: Reduction of the Dynamically-Listed Strike Increment for Monthly and 

Weekly Friday Mexican Peso/U.S. Dollar (MXN/USD) Options Contracts 

and Brazilian Real/U.S. Dollar (BRL/USD) Options Contracts

Effective Sunday, October 22, 2023 for trade date Monday, October 23, 2023, Chicago Mercantile 

Exchange Inc. (“CME” or “Exchange”) will amend Rule 256A01.J.4. (“Dynamically-Listed Exercise Prices”) 

of the Monthly and Weekly Friday Mexican Peso/U.S. Dollar (MXN/USD) options contracts and Rule 

257A01.J. (Exercise Prices) of the Monthly and Weekly Friday Brazilian Real/U.S. Dollar (BRL/USD) 

options contracts (the “Contracts”) to reduce the dynamically-listed strike increment of the Contracts for 

trading on the CME Globex electronic trading platform (“CME Globex”) and for submission of clearing via 

CME ClearPort.

CME Globex / CME

ClearPort Code Contract Title RulebookChapter

Current Dynamic

Strike Price

Increment

Reduced Dynamic

Strike Price

Increment

6M / MP MXN/USD Monthly Options 256A $0.0005 per MXN $0.0001 per MXN

1M-5M / 1M-5M MXN/USD Weekly Friday Options 256A $0.0005 per MXN $0.0001 per MXN

BR / BR BRL/USD Monthly Options 257A $0.001 per BRL $0.0005 per BRL

1R – 5R / 1R-5R BRL/USD Weekly Friday Options 257A $0.001 per BRL $0.0005 per BRL

Specifically, the Exchange is implementing amendments to CME Rule 256A01.J.4 of CME Chapter 256A 

(“Options on Mexican Peso/U.S. Dollar (MXN/USD) Futures”) and CME Rule 257A01.J. of CME Chapter 

257A (“Options on Brazilian Real/U.S. Dollar (BRL/USD) Futures”) to reduce the dynamic strike increment 

both within the listed range as well as outside the range for the Contracts (collectively, the “Rule 

Amendments”).

Market participants may request additional strike prices for trading on CME Globex or for submission of 

clearing via CME ClearPort. These additional strikes are added on an “as soon as possible” basis.

Exhibit A below provides the Rule Amendments in blackline format.

The CFTC will be notified of the Rule Amendments during the week of October 30, 2023, via the weekly 

notification procedures set forth in Part 40 of the CFTC Regulations.

Please direct questions regarding this notice to:

Asia

Shereen Lewejohann +65 6593 5544 Shereen.Lewejohann@cmegroup.com

Europe

Phil Hermon +44 20 3379 3983 Phil.Hermon@cmegroup.com

Paul Houston +44 20 3379 3355 Paul.Houston@cmegroup.com
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Chris Povey +44 20 3379 3080 Chris.Povey@cmegroup.com

U.S.

Emerson Eckhout +1 312 435 3781 Emerson.Eckhout@cmegroup.com

Sebastian Sierotnik +1 312 930 1312 Sebastian.Sierotnik@cmegroup.com

Exhibit A

CME Rulebook

(deletions struck through, additions underlined)

Chapter 256A

Options on Mexican Peso/U.S. Dollar (MXN/USD) Futures

***

256A01. OPTION CHARACTERISTICS

***

256A01.J. Exercise Prices and Listing of Exercise Prices

***

4. Dynamically-Listed Exercise Prices. 

Upon demand and at the discretion of the Exchange, new out-of-current-range exercise prices at regularly 

defined $0.0001 per Mexican peso intervals may be added for trading on as soon as possible basis.

[End of Rule.]

Chapter 257A

Options on Brazilian Real/U.S. Dollar (BRL/USD) Futures

***

257A01. OPTION CHARACTERISTICS

***

257A01.J. Exercise Prices

***

Regular exercise prices shall be stated in terms of U.S. dollars per Brazilian real at intervals of $0.001,

e.g., $0.1950, $0.1960, $0.1970, etc.

Upon demand and at the discretion of the Exchange, new exercise prices at $0.0001 per Brazilian real 

intervals may be added for trading on as soon as possible basis.

[End of Rule.]