SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 12/16/08          |
--------------------------------------------------------------| 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:       34,017
COMMITMENTS
  20,003    5,858    1,292   12,696   26,725   33,992   33,874       25      142

CHANGES FROM 12/09/08 (CHANGE IN OPEN INTEREST:     -1,050)
     789       78   -1,343     -513      111   -1,067   -1,155       17      104

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    58.8     17.2      3.8     37.3     78.6     99.9     99.6      0.1      0.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       40)
      11        9        8       13       17       27       31
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
OPTION AND FUTURES COMBINED POSITIONS AS OF 12/16/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 METRIC TONS CCX C02)             OPEN INTEREST:        8,294
COMMITMENTS
   5,726    5,642    1,990        2      531    7,718    8,163      576      131

CHANGES FROM 12/09/08 (CHANGE IN OPEN INTEREST:         13)
     -19        6       19        0       -3        1       23       12      -10

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    69.0     68.0     24.0      0.0      6.4     93.1     98.4      6.9      1.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
      16        6        8        1        3       21       13
 
 
RGGI CO2 ALLOWANCE - CHICAGO CLIMATE FUTURES EXCHANGE                Code-00626U
OPTION AND FUTURES COMBINED POSITIONS AS OF 12/16/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:        6,835
COMMITMENTS
     216    1,592      416    6,171    4,752    6,802    6,760       33       75

CHANGES FROM 12/09/08 (CHANGE IN OPEN INTEREST:        772)
      -1     -190      -56      825    1,019      768      773        4       -2

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.2     23.3      6.1     90.3     69.5     99.5     98.9      0.5      1.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       3        6        6       15       11       22       19


Updated December 19, 2008