```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/21/09          |
--------------------------------------------------------------| 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:       26,748
COMMITMENTS
  17,689      368      778    8,220   25,593   26,688   26,739       60        9

CHANGES FROM 04/14/09 (CHANGE IN OPEN INTEREST:      1,511)
     744      -30        2      896    1,680    1,641    1,652     -130     -141

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    66.1      1.4      2.9     30.7     95.7     99.8    100.0      0.2      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
       9        4        6       15       17       27       24
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/21/09          |
--------------------------------------------------------------| 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:        6,947
COMMITMENTS
   4,183    2,305    2,222      129    2,313    6,534    6,840      413      107

CHANGES FROM 04/14/09 (CHANGE IN OPEN INTEREST:        822)
     937      -15     -142        0      936      795      779       28       43

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    60.2     33.2     32.0      1.9     33.3     94.0     98.5      6.0      1.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       30)
      22        4       11        2        4       27       16
 
 
NITROGEN FIN INS ANNUAL 2009 - CHICAGO CLIMATE FUTURES EXCHANGE      Code-00626F
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/21/09          |
--------------------------------------------------------------| 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:       25,391
COMMITMENTS
   2,499      149        0   22,882   25,242   25,381   25,391       10       -0

CHANGES FROM 04/14/09 (CHANGE IN OPEN INTEREST:      1,766)
     625      -50        0    1,141    1,816    1,766    1,766       -0       -0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     9.8      0.6      0.0     90.1     99.4    100.0    100.0      0.0     -0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       1        1        0       15       12       16       13
 
 
RGGI CO2 ALLOWANCE - CHICAGO CLIMATE FUTURES EXCHANGE                Code-00626U
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/21/09          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:       15,395
COMMITMENTS
   1,355    4,404    1,474   12,445    9,404   15,274   15,282      121      113

CHANGES FROM 04/14/09 (CHANGE IN OPEN INTEREST:        451)
    -127      155      205      685      416      764      776     -313     -325

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.8     28.6      9.6     80.8     61.1     99.2     99.3      0.8      0.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       5        4        7       18       13       27       20
```

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Updated April 23, 2009