SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE                                          Code-006261
Commitments of Traders with Delta-adjusted Options and Futures Combined, February 26, 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  :    29,366:     8,039      3,403      5,550     15,555     20,357     29,144     29,310:       222         56
Old  :    29,366:     8,039      3,403      5,550     15,555     20,357     29,144     29,310:       222         56
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: February 19, 2008                    :
     :    -1,367:      -270       -728        878     -1,832     -1,426     -1,223     -1,276:      -143        -91
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      27.4       11.6       18.9       53.0       69.3       99.2       99.8:       0.8        0.2
Old  :     100.0:      27.4       11.6       18.9       53.0       69.3       99.2       99.8:       0.8        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  :        31:         9         10         11         12         12         26         28:
Old  :        31:         9         10         11         12         12         26         28:
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  :                 55.3       67.0       78.2       81.5       29.2       26.0       34.0       31.3
Old  :                 55.3       67.0       78.2       81.5       29.2       26.0       34.0       31.3
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated February 29, 2008