```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 08/24/10          |
--------------------------------------------------------------| 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:       17,781
COMMITMENTS
  12,341        0       47    5,366   17,716   17,754   17,763       27       18

CHANGES FROM 08/17/10 (CHANGE IN OPEN INTEREST:       -232)
       1        0       47     -269     -263     -221     -216      -11      -16

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    69.4      0.0      0.3     30.2     99.6     99.8     99.9      0.2      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
       4        0        1        7       13       11       14
 
 
SULFUR FINANCIAL INSTR 2009 - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006265
OPTION AND FUTURES COMBINED POSITIONS AS OF 08/24/10          |
--------------------------------------------------------------| 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:       23,235
COMMITMENTS
  15,037       30       50    8,098   23,124   23,186   23,205       49       30

CHANGES FROM 08/17/10 (CHANGE IN OPEN INTEREST:       -202)
     -51       -6      -36     -128     -191     -214     -232       12       30

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    64.7      0.1      0.2     34.9     99.5     99.8     99.9      0.2      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       33)
      11        1        2       18       13       30       15
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
OPTION AND FUTURES COMBINED POSITIONS AS OF 08/24/10          |
--------------------------------------------------------------| 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:        4,147
COMMITMENTS
   3,044      586      875        0    2,632    3,919    4,093      228       54

CHANGES FROM 08/17/10 (CHANGE IN OPEN INTEREST:        -31)
     -34      -54       10        0       11      -24      -33       -7        2

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    73.4     14.1     21.1      0.0     63.5     94.5     98.7      5.5      1.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
      19        2        7        0        2       21        9
 
 
RGGI CO2 ALLOWANCE 2009 - CHICAGO CLIMATE FUTURES EXCHANGE           Code-00626U
OPTION AND FUTURES COMBINED POSITIONS AS OF 08/24/10          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:       11,829
COMMITMENTS
     486      100       95   11,215   11,632   11,796   11,827       33        2

CHANGES FROM 08/17/10 (CHANGE IN OPEN INTEREST:          .)
       .        .        .        .        .        .        .        .        .

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.1      0.8      0.8     94.8     98.3     99.7    100.0      0.3      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       20)
       5        1        3       10        8       15       12
```

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Updated August 27, 2010