```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/31/09          |
--------------------------------------------------------------| 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:       24,931
COMMITMENTS
  16,629      313      867    7,215   23,591   24,710   24,771      221      160

CHANGES FROM 03/24/09 (CHANGE IN OPEN INTEREST:      1,389)
     520       42     -101      809    1,293    1,229    1,235      160      154

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    66.7      1.3      3.5     28.9     94.6     99.1     99.4      0.9      0.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       33)
       8        5        8       16       17       27       27
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/31/09          |
--------------------------------------------------------------| 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:       10,195
COMMITMENTS
   6,116    1,626    3,513      129    4,970    9,758   10,109      437       87

CHANGES FROM 03/24/09 (CHANGE IN OPEN INTEREST:        867)
     265      -50      562       10      393      837      904       30      -38

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    60.0     15.9     34.5      1.3     48.7     95.7     99.2      4.3      0.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       32)
      22        5       11        2        5       27       18
 
 
RGGI CO2 ALLOWANCE - CHICAGO CLIMATE FUTURES EXCHANGE                Code-00626U
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/31/09          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:       12,769
COMMITMENTS
   1,062    3,564    1,513   10,132    7,646   12,707   12,723       62       46

CHANGES FROM 03/24/09 (CHANGE IN OPEN INTEREST:      1,932)
       6    1,013      216    1,768      773    1,989    2,001      -58      -70

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.3     27.9     11.8     79.4     59.9     99.5     99.6      0.5      0.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       5        4        6       17       14       26       20
```

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Updated April 3, 2009