CME Group Inc. Announces Date Of Second-Quarter 2008 Earnings Release, Conference Call

CME Group Inc. (NYSE: CME)(NASDAQ: CME) will announce earnings for the second quarter of 2008 before the financial markets open on Tuesday, July 22, 2008. The company has scheduled an investor conference call that day at 8:30 a.m. Eastern time (7:30 a.m. Central time).

A live audio Webcast of the conference call will be available on the Investor Relations section of the company's Web site, http://www.cmegroup.com/. Following the conference call, an archived recording will be available at the same site. Those wishing to listen to the live conference via telephone should dial (877) 718-5107 if calling from within the United States or (719) 325-4800 if calling from outside the United States, at least 10 minutes before the call begins.