SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 07/01/08                         |
--------------------------------------------------------------| 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:       26,456
COMMITMENTS
  13,484    3,031      432   12,484   22,945   26,400   26,408       56       48

CHANGES FROM 06/24/08 (CHANGE IN OPEN INTEREST:     -1,547)
     102       93     -258   -1,415   -1,362   -1,571   -1,527       24      -20

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    51.0     11.5      1.6     47.2     86.7     99.8     99.8      0.2      0.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
      11        8        9       11       13       28       25
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 07/01/08                         |
--------------------------------------------------------------| 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:        4,156
COMMITMENTS
   2,761    2,702      588        0      377    3,349    3,667      807      489

CHANGES FROM 06/24/08 (CHANGE IN OPEN INTEREST:       -125)
      75      503     -511       -4     -431     -440     -439      315      314

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    66.4     65.0     14.1      0.0      9.1     80.6     88.2     19.4     11.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
      14        5        6        0        2       17       10
 

Updated July 7, 2008