```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/05/09          |
--------------------------------------------------------------| 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:       25,973
COMMITMENTS
  17,882      261      811    7,131   24,812   25,824   25,884      149       89

CHANGES FROM 04/28/09 (CHANGE IN OPEN INTEREST:     -1,266)
     113       -2       56   -1,533   -1,374   -1,363   -1,320       97       54

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    68.8      1.0      3.1     27.5     95.5     99.4     99.7      0.6      0.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       30)
       8        2        4       15       17       24       22
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/05/09          |
--------------------------------------------------------------| 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:        5,682
COMMITMENTS
   3,287    2,377    1,860       65    1,285    5,212    5,523      470      159

CHANGES FROM 04/28/09 (CHANGE IN OPEN INTEREST:       -551)
    -164      139     -343      -49     -369     -556     -573        5       22

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    57.8     41.8     32.7      1.1     22.6     91.7     97.2      8.3      2.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
      20        4       10        2        4       25       15
 
 
NITROGEN FIN INS ANNUAL 2009 - CHICAGO CLIMATE FUTURES EXCHANGE      Code-00626F
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/05/09          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1 U.S. EPA CAIR ANNUAL EMM             OPEN INTEREST:       23,793
COMMITMENTS
   2,124      563        0   21,669   23,230   23,793   23,793        0        0

CHANGES FROM 04/28/09 (CHANGE IN OPEN INTEREST:     -2,632)
    -325       50        0   -2,251   -2,625   -2,576   -2,576      -56      -56

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.9      2.4      0.0     91.1     97.6    100.0    100.0      0.0      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
       1        2        0       16       12       17       14
 
 
RGGI CO2 ALLOWANCE - CHICAGO CLIMATE FUTURES EXCHANGE                Code-00626U
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/05/09          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:       13,621
COMMITMENTS
   2,099    3,263      732   10,661    9,517   13,492   13,512      129      109

CHANGES FROM 04/28/09 (CHANGE IN OPEN INTEREST:     -2,357)
   1,177   -1,667     -822   -2,795       89   -2,439   -2,399       82       42

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    15.4     24.0      5.4     78.3     69.9     99.1     99.2      0.9      0.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       5        4        7       18       14       27       21
```

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Updated May 08, 2009