News Release

CME Group Announces Columbus Day Holiday Hours

Wed Oct 08 2008

CHICAGO, Oct. 8 /PRNewswire-FirstCall/ -- CME Group, the world's largest and most diverse derivatives exchange, will close only the Foreign Exchange and Interest Rate open outcry trading floors on Monday, October 13, in observance of Columbus Day. On Friday, October 10, the Foreign Exchange and Interest Rate trading floors will cease trading at noon.

Commodities, Equities, GSCI, Weather, Real Estate, Energy and Metals products will trade in open outcry during regular trading hours.

For more holiday trading schedule details for CME Group open outcry and electronic trading on CME Globex®, please see http://www.cmegroup.com/tools-information/holiday-calendar/index.html.

CME Group (http://www.cmegroup.com/) is the world's largest and most diverse derivatives exchange. Building on the heritage of CME, CBOT and NYMEX, 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 trading floors in Chicago and New York. By acting as the buyer to every seller and the seller to every buyer, CME Clearing virtually eliminates counterparty credit risk CME Clearing also offers $7 billion in financial safeguards to help mitigate systemic risk, providing the security and confidence market participants need to operate, invest and grow. 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, energy, agricultural commodities, metals, and alternative investment products such as weather and real estate. CME Group is listed on 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. NYMEX, New York Mercantile Exchange, and ClearPort are trademarks of New York Mercantile Exchange. Inc. COMEX is a trademark of Commodity Exchange, Inc. 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 Michael Shore,
+1-312-930-2363, or Anu Ahluwalia, +1-212-299-2439, all of CME Group,
news@cmegroup.com, or Investors, John Peschier, +1-312-930-8491

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

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