```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 08/03/10                         |
--------------------------------------------------------------| 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:       17,103
COMMITMENTS
  12,244       33        0    4,846   17,070   17,090   17,103       13        0

CHANGES FROM 07/27/10 (CHANGE IN OPEN INTEREST:       -112)
    -100      -10        0        0      -97     -100     -107      -12       -5

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    71.6      0.2      0.0     28.3     99.8     99.9    100.0      0.1      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
       4        1        0        7       13       11       14
 
 
SULFUR FINANCIAL INSTR 2009 - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006265
FUTURES ONLY POSITIONS AS OF 08/03/10                         |
--------------------------------------------------------------| 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:       19,657
COMMITMENTS
  14,142       81       62    5,423   19,510   19,627   19,653       30        4

CHANGES FROM 07/27/10 (CHANGE IN OPEN INTEREST:       -238)
    -102     -131       16     -110     -105     -196     -220      -42      -18

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    71.9      0.4      0.3     27.6     99.3     99.8    100.0      0.2      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       29)
       9        1        1       12       11       21       13
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 08/03/10                         |
--------------------------------------------------------------| 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:        2,407
COMMITMENTS
   2,266      454        0        0    1,950    2,266    2,404      141        3

CHANGES FROM 07/27/10 (CHANGE IN OPEN INTEREST:        -12)
       0      -14        0        0        0        0      -14      -12        2

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    94.1     18.9      0.0      0.0     81.0     94.1     99.9      5.9      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
      18        2        0        0        2       18        4
```

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Updated August 6, 2010