News Release

CME Group Lists Weather Contracts on Seven New Cities

Mon May 19 2008

CHICAGO, May 19 /PRNewswire-FirstCall/ -- CME Group, the world's largest and most diverse derivatives exchange, announced that it is expanding its suite of temperature-based products and is offering weather contracts on six U.S. cities and one European city. Cooling Degree Day contracts are available for trading starting today with Heating Degree Day and Weekly contracts to start in June and July, respectively.

The new cities include Oslo, Norway; Little Rock, Ark.; Los Angeles, Calif.; Colorado Springs, Colo.; Jacksonville, Fla.; Raleigh, N.C.; and Washington DC bringing the total number of city-based temperature contracts to 42.

"Adding these new cities to our weather complex furthers our commitment to our customers to offer an even broader range of options to manage risk associated with the weather," Felix Carabello, Director of Alternative Investment Products at CME Group, said. "These contracts enable energy and utility companies, retailers and others that face business uncertainty as a result of unusually hot or cold temperatures to transfer their exposure to the capital markets."

With the addition of these new contracts, CME Group will offer weather contracts based on aggregate temperatures for 42 cities, including 24 throughout the U.S., 10 in Europe, six in Canada and two in Japan. CME Group also lists products used to hedge risk associated with hurricanes and snowfall. For more information on CME Group weather contracts, please go to http://www.cmegroup.com/trading/weather/index.html.

CME Group (http://www.cmegroup.com/) is the world's largest and most diverse derivatives 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, 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. These trademarks are used herein under license. 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, news@cmegroup.com, or Investors, John Peschier,
+1-312-930-8491, all of CME Group

Web site: http://www.cmegroup.com/
http://www.cmegroup.com/trading/weather/index.html
http://www.cmegroup.mediaroom.com/

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