News Release

CME Group Launches FIX/FAST Market Data Format

Wed Oct 31 2007

CHICAGO, Oct. 31 /PRNewswire-FirstCall/ -- CME Group, the world's largest and most diverse exchange, announced this month the launch of the FIX/FAST(SM) market data format, which allows customers to receive market data more efficiently.

Based on FIX(SM) and FAST(SM) market data protocols, FIX/FAST is aligned with industry messaging standards and is the basis for CME Group's new market data distribution. FIX/FAST improves scalability, allows customers to reduce bandwidth and offers reduced latency at both average and peak message rates.

All CME Group customers are expected to move to this more flexible format from the legacy RLC market data format by the end of 2008, when RLC will be discontinued.

FIX/FAST is just the most recent step in CME Group's strategy to improve market data offerings in response to customer requests for faster and more efficient distribution of data. Combined with last year's change to the Market Data Platform (MDP) dissemination method, customers now have the latest technology available for obtaining CME Group market information and prices. With the upcoming migration of Chicago Board of Trade products on to the CME Globex® platform, customers will have a single, high-performance solution for market data and trading.

To date the following trading system providers have completed CME Group certification for FIX/FAST: CQG Inc., Interactive Brokers, ION Trading, Holleb Consulting and Trading Technologies International, Inc. (TT).

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, 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. Standard & Poor's, S&P 500 and S&P, S&P MidCap 400, Standard & Poor's Depositary Receipts and SPDR are trademarks of The McGraw-Hill Companies, Inc. 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, or investors, John Peschier, +1-312-930-8491, all of CME
Group

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

Corporate Communications

+1 312 930 3434
Email