Chicago Mercantile Exchange Inc. To Present At Sandler O'Neill Financial Services Conference

Chicago Mercantile Exchange Inc. announced yesterday that the company will be presenting at the Sandler O'Neill Financial Services Conference on Wednesday, June 9, 2004 at 10:15 a.m. (Eastern Time) in New York, New York.

The presentation will be broadcast live over the Internet and can be accessed via the exchange’s web site atwww.cme.com. Please allow extra time prior to the presentation to visit the site and download the streaming media software required to listen to the Internet broadcast.