SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 11/27/07          |
--------------------------------------------------------------| 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:       25,394
COMMITMENTS
   8,416    4,235    3,689   13,129   17,445   25,235   25,368      160       26

CHANGES FROM 11/20/07 (CHANGE IN OPEN INTEREST:      1,819)
     348      319    1,113      215      392    1,677    1,825      143       -5

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    33.1     16.7     14.5     51.7     68.7     99.4     99.9      0.6      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       35)
      12        9       14       11       12       31       29


Updated November 30, 2007