SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE                                          Code-006261
Commitments of Traders with Delta-adjusted Options and Futures Combined, September 18, 2007              
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     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
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     :          : (CONTRACTS OF 25 U.S. EPA SO2 EMMISSION ALLOWANCES)                        :
     :          :                                                                            :
All  :    22,915:     3,927      2,377      2,917     15,673     17,253     22,516     22,547:       398        368
Old  :    22,915:     3,927      2,377      2,917     15,673     17,253     22,516     22,547:       398        368
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: September 11, 2007                   :
     :        59:       359       -187        438     -1,071       -497       -274       -245:       332        304
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      17.1       10.4       12.7       68.4       75.3       98.3       98.4:       1.7        1.6
Old  :     100.0:      17.1       10.4       12.7       68.4       75.3       98.3       98.4:       1.7        1.6
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  :        34:        12         10         11         12         12         27         30:
Old  :        34:        12         10         11         12         12         27         30:
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  :                 62.0       63.2       82.1       81.4       30.8       26.6       35.9       33.3
Old  :                 62.0       63.2       82.1       81.4       30.8       26.6       35.9       33.3
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated September 21, 2007