CME Launches TeleSTAT System to Provide Customers Access to Recent Trade Data

CHICAGO, Dec. 6 /PRNewswire-FirstCall/ -- CME, the largest U.S. futures exchange, announced today it has launched TeleSTAT, an automated telephone system, which will enhance CME Globex^® users' access to trading information. CME TeleSTAT is the first system of its kind among futures and options exchanges.

"Introducing this technology is another step in our ongoing commitment to increase CME customer satisfaction," said CME President and Chief Operating Officer Phupinder Gill. "We want to continue to deliver excellent service for our customers, and telephone access to trade execution information was seen as a simple, yet important way of doing this. TeleSTAT is a system we feel will enhance the way customers communicate with CME."

Beginning today, CME Globex users will be able to quickly and conveniently obtain the following information from CME TeleSTAT after entering a unique and secure user identification and personal identification number:

Total Cleared Trades by Trade Date
Last 20 Executions
Total Cleared Trades with Last 20 Executions
Cleared Trade Reports that can be emailed to the registered email address

CME TeleSTAT will be available during regular CME Globex trading hours, Sunday through Friday. Developed internally by CME, TeleSTAT will be implemented in phases, with CME Globex firm administrators the first to be granted access. They will be followed by all registered CME Globex customers and then by non-registered customers. Eventually, customers will be able to use TeleSTAT to obtain order status and cancel orders. More information is available at http://www.cme.com/telestat .

Chicago Mercantile Exchange Inc. ( http://www.cme.com ) is the largest futures exchange in the United States and the first publicly traded financial exchange in the U.S. As an international marketplace, CME brings together buyers and sellers on its trading floors and CME Globex^® electronic trading platform. CME offers futures and options on futures primarily in four product areas: interest rates, stock indexes, foreign exchange and commodities. The exchange moved approximately $1.5 billion per day in settlement payments in the first nine months of 2004 and managed $39.8 billion in collateral deposits as of September 30, 2004. CME is a wholly owned subsidiary of Chicago Mercantile Exchange Holdings Inc. (NYSE: CME), which is part of the Russell 1000^® Index.

Chicago Mercantile Exchange, CME, the globe logo and Globex are registered trademarks of Chicago Mercantile Exchange Inc. E-mini is a trademark of CME.

SOURCE Chicago Mercantile Exchange Inc. 12/06/2004

CONTACT: Media, Anita S. Liskey, +1-312-466-4613, or Allan Schoenberg, +1-312-930-8189, news@cme.com , or Investors, John Peschier, +1-312-930-8491, all of Chicago Mercantile Exchange Inc. Web site: http://www.cme.com http://www.cme.com/telestat (CME)

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Statements in this press release regarding Chicago Mercantile Exchange's business which are not historical facts are "forward-looking statements" that involve risks and uncertainties. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see "Risk Factors" in the Company's Annual Report or Form 10-K for the most recently ended fiscal year.