SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 08/05/08                         |
--------------------------------------------------------------| 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:       28,693
COMMITMENTS
  15,880    4,244    6,295    6,313   18,137   28,488   28,676      205       17

CHANGES FROM 07/29/08 (CHANGE IN OPEN INTEREST:     -1,030)
   1,028      410      -44   -1,952   -1,340     -968     -974      -62      -56

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    55.3     14.8     21.9     22.0     63.2     99.3     99.9      0.7      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       37)
      12       11       11        9       12       28       28
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 08/05/08                         |
--------------------------------------------------------------| 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:        4,632
COMMITMENTS
   2,860    2,137    1,282        0      501    4,142    3,920      490      712

CHANGES FROM 07/29/08 (CHANGE IN OPEN INTEREST:       -107)
    -119     -482       51        0     -253      -68     -684      -39      577

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    61.7     46.1     27.7      0.0     10.8     89.4     84.6     10.6     15.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
      14        4        8        0        4       18       13
 

Updated August 8, 2008