SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 10/09/07          |
--------------------------------------------------------------| 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:       25,736
COMMITMENTS
   4,972    3,762    2,916   17,649   18,849   25,538   25,527      199      209

CHANGES FROM 10/02/07 (CHANGE IN OPEN INTEREST:        964)
     756    1,229     -202      336     -153      890      874       74       90

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    19.3     14.6     11.3     68.6     73.2     99.2     99.2      0.8      0.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
      10       11       15       12       12       30       31


Updated October 12, 2007