SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE                                          Code-006261
Commitments of Traders - Futures Only, June 3, 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                                    :
     :          :                                                                            :
All  :    26,295:    10,848      2,812        199     15,073     23,267     26,120     26,278:       175         17
Old  :    26,295:    10,848      2,812        199     15,073     23,267     26,120     26,278:       175         17
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 27, 2008                         :
     :      -257:       247        -15       -148       -298        -56       -199       -219:       -58        -38
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      41.3       10.7        0.8       57.3       88.5       99.3       99.9:       0.7        0.1
Old  :     100.0:      41.3       10.7        0.8       57.3       88.5       99.3       99.9:       0.7        0.1
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  :        35:        14          7          9         13         13         30         26:
Old  :        35:        14          7          9         13         13         30         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  :                 63.5       74.4       83.2       90.2       41.3       51.2       53.2       56.9
Old  :                 63.5       74.4       83.2       90.2       41.3       51.2       53.2       56.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated June 6, 2008