SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 10/28/08          |
--------------------------------------------------------------| 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:       34,954
COMMITMENTS
  22,628    5,982    3,876    8,265   25,040   34,769   34,898      185       56

CHANGES FROM 10/21/08 (CHANGE IN OPEN INTEREST:       -142)
    -233     -817      -53       40      700     -246     -171      104       29

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    64.7     17.1     11.1     23.6     71.6     99.5     99.8      0.5      0.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       40)
      12       12       14       13       14       34       31
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
OPTION AND FUTURES COMBINED POSITIONS AS OF 10/28/08          |
--------------------------------------------------------------| 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:        8,557
COMMITMENTS
   5,772    5,223    2,253        0      933    8,025    8,409      532      148

CHANGES FROM 10/21/08 (CHANGE IN OPEN INTEREST:          2)
     -37      -25       28        0       -3       -9        0       11        2

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    67.4     61.0     26.3      0.0     10.9     93.8     98.3      6.2      1.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
      14        5        8        0        2       17       12
 
 
RGGI CO2 ALLOWANCE - CHICAGO CLIMATE FUTURES EXCHANGE                Code-00626U
OPTION AND FUTURES COMBINED POSITIONS AS OF 10/28/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:        2,921
COMMITMENTS
     134      633      260    2,423    1,853    2,817    2,746      105      175

CHANGES FROM 10/21/08 (CHANGE IN OPEN INTEREST:       -147)
     -77      263      -17       19     -316      -75      -70      -72      -76

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.6     21.7      8.9     82.9     63.4     96.4     94.0      3.6      6.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       20)
       3        3        4       12       10       17       15


Updated October 31, 2008