SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 10/30/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 25 U.S. EPA SO2 EMMISSION              OPEN INTEREST:       24,695
COMMITMENTS
   6,819    4,127    2,568   15,148   17,838   24,535   24,534      161      162

CHANGES FROM 10/23/07 (CHANGE IN OPEN INTEREST:         25)
      31     -495      292     -169      358      155      155     -129     -130

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    27.6     16.7     10.4     61.3     72.2     99.3     99.3      0.7      0.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       37)
      11       13       16       12       11       33       31


Updated November 2, 2007