SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 07/15/08                         |
--------------------------------------------------------------| 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:       29,406
COMMITMENTS
  14,554    2,973    1,632   13,001   24,630   29,187   29,235      219      171

CHANGES FROM 07/08/08 (CHANGE IN OPEN INTEREST:      2,482)
     399      -29      847    1,047    1,517    2,293    2,335      189      147

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    49.5     10.1      5.5     44.2     83.8     99.3     99.4      0.7      0.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       38)
      14        9        9       12       15       32       27
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 07/15/08                         |
--------------------------------------------------------------| 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:        4,487
COMMITMENTS
   2,888    2,647    1,045        0      628    3,933    4,320      554      167

CHANGES FROM 07/08/08 (CHANGE IN OPEN INTEREST:        264)
      43     -407      493        0      184      536      270     -272       -6

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    64.4     59.0     23.3      0.0     14.0     87.7     96.3     12.3      3.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
      13        5        9        0        3       17       13
 

Updated July 18, 2008