cme @

Chicago Mercantile Exchange

20 South Wacker Drive
Chicago, IL 60606-7499
www.cme.com

March 8, 2007

Ms. Eileen Donovan

Office of the Secretariat

Commodity Futures Trading Commission
Three Lafayette Centre

1155 21* Street, N.W.

Washington, D.C. 20581

RE: CME Rule 588.K. (“Globex® No Bust Ranges”)
Submission No. 07-19

Dear Ms. Webb:

Chicago Mercantile Exchange Inc. (“CME” or “Exchange") hereby notifies the Commission that
the Exchange has approved an amendment to Rule 588.K to add the NYMEX CAT Risk, Dry Whey and
Carvill Hurricane Index futures contracts to the list of Globex No Bust Ranges. The rule change is
attached with the additions underlined.

The Exchange certifies that this regulatory advisory neither violates nor is inconsistent with any
provision of the Commodity Exchange Act or of the rules and regulations thereunder.
If you have any questions regarding this matter, please call me at (312) 648-5422.

Sincerely,

/S/ Stephen M. Szarmack
Director and Associate General Counsel

SMS/eIm/6100 Sub No. 07-19.doc


588.K. Globex No Bust Ranges

Futures

Eurodollar, E-mini Eurodotlar and LIBOR
E-mini Eurodollar Bundle

Euroyen

T-Bills

Swaps

Eurozone HICP Futures

Currency Futures (except British pound and Mexican Peso)

British Pound Futures and Mexican Peso Futures
Spot FX

S&P 500 and E-mini S&P 500

S&P Citigroup Growth

S&P Citigroup Value

S&P Midcap 400 and E-mini S&P Midcap 400
S&P Smallcap 600

E-Mini S&P Asia 50

E-Mini MSC] EAFE

S&P 500 Depository Receipts

Russell 2000 and E-mini Russell 2000
E-mini Russell 1000

iShares Russell 2000

Nasdaq-100 and E-mini Nasdaq-100
E-mini Nasdaq Composite

E-mini Nasdaq Biotechnology
Nasdaq-100 Index Tracking Stock
Nikkei 225 ($ and ¥)

S&P 500 Technology SPCTR

S&P 500 Financial SPCTR

Housing Futures

TRAKRS Futures

Goldman Sachs Commodity Index
CME Weather

CME Snowfall

Carvill Hurricane Index

Lean Hogs

Live Cattle

Feeder Cattle

Pork Bellies

Butter (Cash-Settled)

Milk

Dry Whey

Urea

DAP

UAN

Ethanol

NYMEX Crude Oil and NYMEX miNY Crude Oil
NYMEX Brent

NYMEX REBCO

NYMEX 3-2-1 PLUS

NYMEX Natural Gas and NYMEX miNY Natural Gas
NYMEX Natural Gas (last-day) futures
NYMEX Heating Oil and NYMEX miNY Heating Oil
NYMEX RBOB Gasoline and NYMEX miNY RBOB
Gasoline

NYMEX Unleaded Gas

NYMEX Propane

NYMEX Singapore 380 Fuel Oil
COMEX Gold and miNY Gold
COMEX Asian Gold

COMEX Silver and miNY Silver
NYMEX Platinum

NYMEX Asian Platinum

NYMEX Palladium

NYMEX Asian Palladium

COMEX Copper and miNY Copper
COMEX London Copper Grade A
COMEX Aluminum

COMEX London Primary Aluminum,
COMEX London SHG Zinc

NYMEX Cocoa

NYMEX Coffee

NYMEX Cotton

NYMEX FCOJ

No Bust Range

2.5 basis points or less
2.5 basis points or less
2.5 basis points or less

5 basis points or less

5 basis points or less

25 basis points or less

20 ticks or less

30 ticks or less

20 pips or less

6.00 index points or less
4.00 index points or less
4.00 index points or less
4.00 index points or less
4.00 index points or less
12.00 index points or less
12.00 index points or less
0.60 index points or less
4.00 index points or less
4.00 index points or less
0.40 index points or less
12.00 index points or less
12.00 index points or less
12.00 index points or less
0.30 index points or less
60.00 index points or less
3.00 index points or less
3.00 index points or less
2.00 index points or less
25 cents or less

2.50 index points or less
25.00 index points or less
50 ticks or 5 inches

0.50 index points.or less
$0.0050 per pound or less
$0.0050 per pound or less
$0.0050 per pound or less
$0.0050 per pound or less
$0.0075 per pound or less
$0.20 per cwt. or less
30.0075 or less

$3 per ton or less

$3 per ton or less

$3 per ton or less

$.025 per gallon or less
$0.25 or less

$0.25 or less

$0.25 or less

$0.25 or less

$0.05 or less

$0.05 or less

$0.01 or less

$0.01 or less

$0.01 or less
$0.01 or less
$2.00 or less
$4.00 or less
$0.40 or less
$0.10 or less
$10.00 or less
$0.40 or less
$5.00 or less
$0.40 or less
$0.02 or less
$40.00 or less
$0.01 or less
$40.00 or less
$40.00 or less
$40.00 or less
$0.01 or less
$0.008 or less
$0.025 or less


Futures

NYMEX Sugar 11
NYMEX Sugar 14

NYMEX CAT Risk

Futures Combinations

Eurodollar Combinations & E-mini Eurodollar Bundles
Non-Eurodollar, Non-Implied Eligible, Intra-Commodity

Futures Spreads

Implied Eligible Inter- and Intra-Commodity Futures

Spreads
inter-Commodity Futures Spreads

Options on Futures

Interest Rate Options

All Eurodollar Covered Strategies

Prices below or equal to 5 basis points

Prices greater than 5 through 15 basis points
Prices greater than 15 through 25 basis points
Prices greater than 25 basis points

Interest Rate Options Combinations

(Deltas greater than 50%)

Equity Index Options
Any premium level

Currency Options
Any premium level

Commodity Options
Any premium level

Agricultural Options
Any premium level

No Bust Range
$0.0035 or less
$0.0035 or less
50.00 index points or less

2.5 basis points or less
5 ticks or less

Same as the no bust range of the individual

legs
The wider of the no bust ranges of the two
individual legs

No Bust Range

1 basis point
1 basis point
1.5 basis points
2 basis points
2.5 basis points
2.5 basis points

20% of premium (up to 3.00 index points with
a minimum of 1 tick) or less

20% of premium (up to 10 ticks with a
minimum of 1 tick) or less

20% of premium (up to 10 ticks with a
minimum of 1 tick) or less

20% of premium (up to $0.0025 per pound
with a minimum of 1 tick) or less