News Release

CME Group Issues Statement in Response to CBOE Rule Filing

Mon Jul 23 2007

CHICAGO, July 23 /PRNewswire-FirstCall/ -- CME Group, the world's largest and most diverse exchange, issued the following statement in response to Chicago Board Options Exchange's (CBOE) "rule interpretation" terminating exerciser rights and creating a temporary trading permit program:

              "CME Group is committed to vigorously defending the rights of
              CBOT B-1 members in the Delaware litigation against CBOE.  The
              action brought in Delaware by CBOT and two individuals who
              represent the class of persons with exercise rights seeks to
              preserve all of the exercise rights granted to CBOT members by
              the CBOE Charter and the 1992 Agreement between CBOT and CBOE.
              CME Group is supporting CBOT's and the class representatives'
              prosecution of this litigation to secure the rights of
              exercise rights holders to an equal distribution in the CBOE
              demutualization.

              On Friday, July 20, CBOT and the class representatives filed a
              motion for a Temporary Restraining Order (TRO).  The TRO seeks
              to prevent CBOE from terminating the exerciser rights while
              that very issue is under consideration by the court.  The
              motion asks the court to prevent CBOE from implementing its
              "rule interpretation" pursuant to which CBOE has locked out
              certain CBOT exercisers and has unilaterally decided the very
              issue that has been submitted to the Delaware court.  Today,
              following a conference with the parties' attorneys, the court
              set the motion for hearing on July 31, 2007.

              CME Group and CBOT continue to believe that the merger of CBOT
              Holdings and CME Holdings Inc. did not impair the exercise
              rights of CBOT B-1 members under the terms of the 1992
              Agreement and the CBOE Charter.  CBOT continues to exist as a
              member-based exchange following the merger and CBOT full
              members continue to have full trading rights in respect to all
              of the products and contracts listed by the CBOT.  We will
              continue to work to preserve the rights of CBOT members to
              become or remain exerciser members of the CBOE pursuant to the
              exercise right and to share equally in any CBOE
              demutualization."

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, Anita Liskey, +1-312-466-4613, or Allan Schoenberg, +1-
312-930-8189, news@cmegroup.com, or Investor, John Peschier, +1-312-930-8491,
all for CME Group

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

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