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SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE                                          Code-006261
Commitments of Traders with Delta-adjusted Options and Futures Combined, April 20, 2010                  
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : (CONTRACTS OF 25 U.S. EPA SO2 EMMISSION ALLOWANCES)                        :
     :          :                                                                            :
All  :    19,020:    12,478        411         33      6,486     18,531     18,997     18,975:        23         45
Old  :    19,020:    12,478        411         33      6,486     18,531     18,997     18,975:        23         45
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: April 13, 2010                       :
     :       794:        89        -20        -31        764        822        822        771:       -28         23
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      65.6        2.2        0.2       34.1       97.4       99.9       99.8:       0.1        0.2
Old  :     100.0:      65.6        2.2        0.2       34.1       97.4       99.9       99.8:       0.1        0.2
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0:       0.0        0.0
     :          :                                                                            :
     :# Traders :              Number of Traders in Each Category                            :
All  :        27:         6          3          1          9         13         15         17:
Old  :        27:         6          3          1          9         13         15         17:
Other:         0:         0          0          0          0          0          0          0:
     :----------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 82.8       82.5       96.8       93.7       82.8       74.8       87.5       82.2
Old  :                 82.8       82.5       96.8       93.7       82.8       74.8       87.5       82.2
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
SULFUR FINANCIAL INSTR 2009 - CHICAGO CLIMATE FUTURES EXCHANGE                                          Code-006265
Commitments of Traders with Delta-adjusted Options and Futures Combined, April 20, 2010                  
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : (CONTRACTS OF 25 U.S. EPA SO2 EMMISSION ALLOWANCES)                        :
     :          :                                                                            :
All  :    30,681:    22,265      7,133        373      7,925     23,135     30,563     30,641:       118         40
Old  :    30,681:    22,265      7,133        373      7,925     23,135     30,563     30,641:       118         40
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: April 13, 2010                       :
     :     5,319:     1,551        239        198      3,535      4,865      5,283      5,302:        36         17
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      72.6       23.3        1.2       25.8       75.4       99.6       99.9:       0.4        0.1
Old  :     100.0:      72.6       23.3        1.2       25.8       75.4       99.6       99.9:       0.4        0.1
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0:       0.0        0.0
     :          :                                                                            :
     :# Traders :              Number of Traders in Each Category                            :
All  :        31:         8          4          3         16         16         26         21:
Old  :        31:         8          4          3         16         16         26         21:
Other:         0:         0          0          0          0          0          0          0:
     :----------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 74.6       73.6       89.6       92.3       72.3       68.8       79.1       81.2
Old  :                 74.6       73.6       89.6       92.3       72.3       68.8       79.1       81.2
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE                                          Code-006268
Commitments of Traders with Delta-adjusted Options and Futures Combined, April 20, 2010                  
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : (CONTRACTS OF 1,000 METRIC TONS CCX C02)                                   :
     :          :                                                                            :
All  :     3,997:     2,708        459        997         54      2,482      3,759      3,938:       239         59
Old  :     3,997:     2,708        459        997         54      2,482      3,759      3,938:       239         59
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: April 13, 2010                       :
     :        31:        40         -4          1         -0         33         41         30:       -11          1
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      67.7       11.5       24.9        1.4       62.1       94.0       98.5:       6.0        1.5
Old  :     100.0:      67.7       11.5       24.9        1.4       62.1       94.0       98.5:       6.0        1.5
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0:       0.0        0.0
     :          :                                                                            :
     :# Traders :              Number of Traders in Each Category                            :
All  :        24:        20          2          7          2          2         24          9:
Old  :        24:        20          2          7          2          2         24          9:
Other:         0:         0          0          0          0          0          0          0:
     :----------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 51.1       89.2       70.6       98.5       40.7       72.2       53.9       72.2
Old  :                 51.1       89.2       70.6       98.5       40.7       72.2       53.9       72.2
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
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Updated April 28, 2010