SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE                                          Code-006261
Commitments of Traders with Delta-adjusted Options and Futures Combined, October 16, 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  :    21,884:     5,856      2,902      1,359     14,560     17,411     21,774     21,672:       110        213
Old  :    21,884:     5,856      2,902      1,359     14,560     17,411     21,774     21,672:       110        213
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: October 9, 2007                      :
     :    -3,852:       883       -860     -1,558     -3,089     -1,438     -3,763     -3,856:       -89          3
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      26.8       13.3        6.2       66.5       79.6       99.5       99.0:       0.5        1.0
Old  :     100.0:      26.8       13.3        6.2       66.5       79.6       99.5       99.0:       0.5        1.0
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:        11         10         14         11         12         29         30:
Old  :        34:        11         10         14         11         12         29         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  :                 60.8       65.8       83.5       78.1       34.6       27.8       41.0       36.1
Old  :                 60.8       65.8       83.5       78.1       34.6       27.8       41.0       36.1
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated October 19, 2007