SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE                                          Code-006261
Commitments of Traders with Delta-adjusted Options and Futures Combined, February 12, 2008               
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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  :    27,788:     8,194      4,578      3,831     15,478     19,190     27,503     27,600:       285        188
Old  :    27,788:     8,194      4,578      3,831     15,478     19,190     27,503     27,600:       285        188
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: February 5, 2008                     :
     :     2,113:     1,196        731       -373      1,236      1,711      2,059      2,070:        54         44
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      29.5       16.5       13.8       55.7       69.1       99.0       99.3:       1.0        0.7
Old  :     100.0:      29.5       16.5       13.8       55.7       69.1       99.0       99.3:       1.0        0.7
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:        12          7          8         12         10         27         22:
Old  :        31:        12          7          8         12         10         27         22:
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  :                 57.0       75.4       81.8       86.3       30.1       29.9       35.7       36.3
Old  :                 57.0       75.4       81.8       86.3       30.1       29.9       35.7       36.3
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated February 15, 2008