News Release

CME Group Announces Christmas and New Year's Holiday Hours

Tue Dec 11 2007

CHICAGO, Dec. 11 /PRNewswire-FirstCall/ -- CME Group, the world's largest and most diverse exchange, will close its trading floors at both the CME and CBOT buildings on Tuesday, December 25 and Tuesday, January 1, 2008, in observance of Christmas and New Year's Days. Abbreviated trading hours will be held for certain products on both Monday, December 24 and Monday, December 31.

For more holiday trading schedule details for CME open outcry and electronic trading on CME Globex®, please see http://www.cme.com/trading/res/te/index.html. CBOT floor trading and e-cbot® holiday schedules can be viewed at http://www.cbot.com/cbot/pub/page/0,3181,1029,00.html.

CME Group (http://www.cmegroup.com/) is the world's largest and most diverse exchange. Formed by the 2007 merger of the Chicago Mercantile Exchange (CME) and the Chicago Board of Trade (CBOT), CME Group serves the risk management needs of customers around the globe. As an international marketplace, CME Group brings buyers and sellers together on the CME Globex electronic trading platform and on its trading floors. CME Group offers the widest range of benchmark products available across all major asset classes, including futures and options based on interest rates, equity indexes, foreign exchange, agricultural commodities, energy, and alternative investment products such as weather and real estate. CME Group is traded on the New York Stock Exchange and NASDAQ under the symbol "CME."

The Globe logo, CME, Chicago Mercantile Exchange, CME Group, Globex and E-mini, are trademarks of Chicago Mercantile Exchange Inc. CBOT and Chicago Board of Trade are trademarks of the Board of Trade of the City of Chicago. All other trademarks are the property of their respective owners. Further information about CME Group and its products can be found at http://www.cmegroup.com/.

CME-G

SOURCE: CME Group

CONTACT: Media, Mary Haffenberg, +1-312-930-3435, or Allan Schoenberg,
+1-312-930-8189, or Investors, John Peschier, +1-312-930-8491,
news@cmegroup.com

Web site: http://www.cmegroup.com/
http://www.cmegroup.mediaroom.com/

Corporate Communications

+1 312 930 3434
Email