```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 03/16/10                         |
--------------------------------------------------------------| 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:       14,916
COMMITMENTS
  10,564      263        0    4,110   14,389   14,674   14,652      242      264

CHANGES FROM 03/09/10 (CHANGE IN OPEN INTEREST:      2,704)
     155     -112        0    2,325    2,552    2,480    2,440      224      264

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    70.8      1.8      0.0     27.6     96.5     98.4     98.2      1.6      1.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       7        2        0        9       14       16       16
 
 
SULFUR FINANCIAL INSTR 2009 - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006265
FUTURES ONLY POSITIONS AS OF 03/16/10                         |
--------------------------------------------------------------| 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:       23,334
COMMITMENTS
  17,876    5,639    1,503    3,534   15,834   22,913   22,976      421      358

CHANGES FROM 03/09/10 (CHANGE IN OPEN INTEREST:        653)
   1,009      418     -393     -265      345      351      370      302      283

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    76.6     24.2      6.4     15.1     67.9     98.2     98.5      1.8      1.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       5        3        2       12       13       18       17
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 03/16/10                         |
--------------------------------------------------------------| 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:        2,408
COMMITMENTS
   2,167      562        1       51    1,844    2,219    2,407      189        1

CHANGES FROM 03/09/10 (CHANGE IN OPEN INTEREST:          0)
      -5        0        0        0        0       -5        0        5        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    90.0     23.3      0.0      2.1     76.6     92.2    100.0      7.8      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
      18        2        1        1        2       20        4
 
 
RGGI CO2 ALLOWANCE 2009 - CHICAGO CLIMATE FUTURES EXCHANGE           Code-00626U
FUTURES ONLY POSITIONS AS OF 03/16/10                         |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  LONG  | SHORT  |SPREADS |  LONG  | SHORT  |  LONG  | SHORT  |  LONG  | SHORT
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:        9,502
COMMITMENTS
     704       31       44    8,530    9,395    9,278    9,470      224       32

CHANGES FROM 03/09/10 (CHANGE IN OPEN INTEREST:       -401)
       0       -8       21     -478     -423     -457     -410       56        9

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
     7.4      0.3      0.5     89.8     98.9     97.6     99.7      2.4      0.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       2        2        2       11       11       15       13
```

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Updated March 19, 2010