Dear CME^® Globex^® Customers,

You are cordially invited to attend our upcoming CME FirmSoft Focus Group meeting in Chicago on Wednesday, December 15, 2004 from 3:30 p.m. until 5:00 p.m. Central time (CT). The goal of the focus group meeting is for CME to provide periodic updates on CME FirmSoft enhancements and to solicit user feedback to direct our development efforts moving forward.

During this meeting we would like to discuss:

• The 2004 CME FirmSoft enhancements
• The implementation of a new Internet portal for CME FirmSoft connectivity
• The scheduled 2005 CME FirmSoft enhancements
• Feedback from focus group participants regarding any additional enhancements

The meeting will take place in Chicago at:

CME
20 South Wacker Drive
Chicago, IL 60606
CME Auditorium, Upper Lobby Level

To reserve a seat, please e-mail Katherine Patrick. After the meeting, please join us in the CME Club for a cocktail reception. Please remember to allow an extra five minutes to pass through CME security.

If you are unable to attend the CME FirmSoft focus group meeting in person, a separate teleconference will be held on Thursday, December 16, 2004 at 10:00 a.m. CT. For details, please contact Katherine Patrick.

We look forward to seeing you there!

CME
CME Globex Account Management
312.634.8700