SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 10/21/08          |
--------------------------------------------------------------| 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:       35,096
COMMITMENTS
  22,860    6,800    3,929    8,225   24,340   35,015   35,069       82       28

CHANGES FROM 10/14/08 (CHANGE IN OPEN INTEREST:        759)
     425      417     -180      563      580      807      817      -48      -58

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    65.1     19.4     11.2     23.4     69.4     99.8     99.9      0.2      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       40)
      15        9       15       13       14       33       33
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
OPTION AND FUTURES COMBINED POSITIONS AS OF 10/21/08          |
--------------------------------------------------------------| 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:        8,555
COMMITMENTS
   5,808    5,248    2,225        0      936    8,034    8,409      521      146

CHANGES FROM 10/14/08 (CHANGE IN OPEN INTEREST:       -204)
     246      186     -418        0        3     -172     -229      -32       25

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    67.9     61.3     26.0      0.0     10.9     93.9     98.3      6.1      1.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
      13        6        8        0        2       17       12
 
 
RGGI CO2 ALLOWANCE - CHICAGO CLIMATE FUTURES EXCHANGE                Code-00626U
OPTION AND FUTURES COMBINED POSITIONS AS OF 10/21/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:        3,068
COMMITMENTS
     211      370      277    2,404    2,170    2,892    2,817      176      251

CHANGES FROM 10/14/08 (CHANGE IN OPEN INTEREST:          .)
       .        .        .        .        .        .        .        .        .

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     6.9     12.0      9.0     78.3     70.7     94.3     91.8      5.7      8.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       3        4        5       12       10       18       16


Updated October 24, 2008