```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/24/09          |
--------------------------------------------------------------| 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:       23,543
COMMITMENTS
  16,109      271      967    6,406   22,299   23,482   23,537       61        6

CHANGES FROM 03/17/09 (CHANGE IN OPEN INTEREST:       -508)
     408     -286     -125     -711       -3     -428     -413      -80      -94

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    68.4      1.2      4.1     27.2     94.7     99.7    100.0      0.3      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
       8        6        7       15       17       27       26
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/24/09          |
--------------------------------------------------------------| 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:        9,329
COMMITMENTS
   5,851    1,676    2,951      119    4,577    8,921    9,205      407      124

CHANGES FROM 03/17/09 (CHANGE IN OPEN INTEREST:        -11)
     119      -46     -171      -11      161      -64      -56       53       45

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    62.7     18.0     31.6      1.3     49.1     95.6     98.7      4.4      1.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       32)
      22        5       12        2        5       28       18
 
 
RGGI CO2 ALLOWANCE - CHICAGO CLIMATE FUTURES EXCHANGE                Code-00626U
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/24/09          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:       10,837
COMMITMENTS
   1,056    2,551    1,297    8,365    6,873   10,717   10,721      119      116

CHANGES FROM 03/17/09 (CHANGE IN OPEN INTEREST:         64)
     463     -150     -132     -298      360       33       78       30      -14

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     9.7     23.5     12.0     77.2     63.4     98.9     98.9      1.1      1.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       5        4        6       18       13       26       20
```

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Updated March 27, 2009