OIR00001    ** PRELIMINARY **       U.S. FUTURES EXCHANGE                  ** PRELIMINARY **

                                     FUTURES OPTIONS TRADING

                                       MAY 15, 2008

              DETAIL OF DAILY VOLUME OF TRADING AND OPEN INTEREST (ONE SIDE ONLY)
              FOR U.S. FUTURES EXCHANGE ON THURSDAY, MAY 15, 2008 # 096,
              AS REPORTED BY CLEARING MEMBERS, AS OF THE CLOSE OF BUSINESS.
              THIS DATA IS SUBJECT TO FURTHER CORRECTION.
              VOLUME INCLUDES OVERNIGHT TRANSACTIONS OF MAY 14, 2008.

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 GRAND  TOTAL                                                                                                         .00%   100.00%

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