SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE                                          Code-006261
Commitments of Traders - Futures Only, October 2, 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  :    17,807:     6,147      2,467        664     10,908     14,600     17,719     17,731:        88         76
Old  :    17,807:     6,147      2,467        664     10,908     14,600     17,719     17,731:        88         76
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: September 25, 2007                   :
     :      -607:       -72       -359        -43       -358        -72       -473       -474:      -134       -133
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      34.5       13.9        3.7       61.3       82.0       99.5       99.6:       0.5        0.4
Old  :     100.0:      34.5       13.9        3.7       61.3       82.0       99.5       99.6:       0.5        0.4
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  :        33:        10         11          6          9         11         21         26:
Old  :        33:        10         11          6          9         11         21         26:
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  :                 70.0       66.2       86.4       80.9       46.4       36.5       53.7       45.7
Old  :                 70.0       66.2       86.4       80.9       46.4       36.5       53.7       45.7
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated October 5, 2007