SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 02/05/08          |
--------------------------------------------------------------| 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:       25,675
COMMITMENTS
   6,998    3,847    4,204   14,242   17,479   25,444   25,531      231      144

CHANGES FROM 01/29/08 (CHANGE IN OPEN INTEREST:      3,614)
     670      788    1,034    2,201    1,683    3,905    3,505     -291      109

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    27.3     15.0     16.4     55.5     68.1     99.1     99.4      0.9      0.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       30)
      10        8       11       12       10       28       23


Updated February 8, 2008