SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 03/24/09                         |
--------------------------------------------------------------| 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:       22,815
COMMITMENTS
  16,022      470      735    5,997   21,604   22,754   22,809       61        6

CHANGES FROM 03/17/09 (CHANGE IN OPEN INTEREST:       -380)
     372     -307      -52     -620       73     -300     -286      -80      -94

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    70.2      2.1      3.2     26.3     94.7     99.7    100.0      0.3      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
       8        6        5       15       15       26       23
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 03/24/09                         |
--------------------------------------------------------------| 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:        6,111
COMMITMENTS
   4,022    1,496    1,725      119    2,841    5,866    6,062      245       49

CHANGES FROM 03/17/09 (CHANGE IN OPEN INTEREST:        -14)
     -20       22      -45      -11      -21      -76      -44       62       30

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    65.8     24.5     28.2      1.9     46.5     96.0     99.2      4.0      0.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       29)
      22        4        5        2        3       25       11
 
 
RGGI CO2 ALLOWANCE - CHICAGO CLIMATE FUTURES EXCHANGE                Code-00626U
FUTURES ONLY POSITIONS AS OF 03/24/09                         |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  LONG  | SHORT  |SPREADS |  LONG  | SHORT  |  LONG  | SHORT  |  LONG  | SHORT
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:        7,069
COMMITMENTS
     885    2,223      594    5,533    4,199    7,012    7,016       57       53

CHANGES FROM 03/17/09 (CHANGE IN OPEN INTEREST:         95)
     239     -159      -44      -73      370      122      167      -27      -72

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    12.5     31.4      8.4     78.3     59.4     99.2     99.3      0.8      0.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       4        4        4       11       10       19       14
 

Updated March 27, 2009