To All CME^® Globex^® Customers,

The following CME^® X-Fund^TM Index futures contracts for October 29, 2004 will be listed for trading during the October 18 - October 29, 2004 trading cycle:

CME X-Fund 1 (X1)
Long Dec 05 CBOT Corn
Long Dec 04 CME British Pound
Long Dec 04 CME Lean Hogs
Long Dec 04 CBOT 100 oz. Gold

Initial/Maintenance Margin: $2,430/$1,800

CME X-Fund 2 (X2)
Long Dec 04 CBOT Wheat
Short Dec 04 CBOT Corn
Long Dec 04 CME Japanese Yen
Short Dec 04 Australian Dollar

Initial/Maintenance Margin: $1,485/$1,100

The electronic trading hours will be as follows:

• Monday, October 18th: 10:00 a.m. - 3:15 p.m.
• Tuesday, October 19th through Friday, October 29th: 7:20 a.m. - 3:15 p.m.
• There is no trading on Saturday or Sunday.

If you have any questions, please contact:

• Dave Smith, Project Analyst, Industrial Commodities, Products & Services Division, at (312) 634-8921;
• Felix Carabello, Associate Director, Products & Services Division, at (312) 634-1585;
• Charles Piszczor, Senior Market Analyst, Commodity Product Development at (312) 930-4536.