```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/06/10          |
--------------------------------------------------------------| 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:       15,009
COMMITMENTS
  10,798      236       23    4,055   14,671   14,876   14,930      133       79

CHANGES FROM 03/30/10 (CHANGE IN OPEN INTEREST:        228)
      76      -91      -15      121      340      183      235       45       -7

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    71.9      1.6      0.2     27.0     97.7     99.1     99.5      0.9      0.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       7        3        1        9       13       16       17
 
 
SULFUR FINANCIAL INSTR 2009 - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006265
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/06/10          |
--------------------------------------------------------------| 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:       25,245
COMMITMENTS
  19,869    6,881      391    4,956   17,968   25,216   25,240       29        5

CHANGES FROM 03/30/10 (CHANGE IN OPEN INTEREST:       -939)
   1,582    1,493   -1,571     -593     -514     -583     -592     -356     -347

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    78.7     27.3      1.5     19.6     71.2     99.9    100.0      0.1      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       7        3        4       13       13       21       19
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/06/10          |
--------------------------------------------------------------| 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:        3,968
COMMITMENTS
   2,679      444      994       54    2,471    3,727    3,910      241       58

CHANGES FROM 03/30/10 (CHANGE IN OPEN INTEREST:         14)
      15        9        0        0        3       15       12       -1        2

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    67.5     11.2     25.1      1.4     62.3     93.9     98.5      6.1      1.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
      20        2        7        2        2       24        9
```

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Updated April 9, 2010