SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE                                          Code-006261
Commitments of Traders with Delta-adjusted Options and Futures Combined, March 18, 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  :    34,932:     9,902      4,379      3,158     21,466     26,911     34,526     34,448:       406        484
Old  :    34,932:     9,902      4,379      3,158     21,466     26,911     34,526     34,448:       406        484
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: March 11, 2008                       :
     :      -528:       854        201     -1,666         23        601       -789       -865:       261        337
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      28.3       12.5        9.0       61.5       77.0       98.8       98.6:       1.2        1.4
Old  :     100.0:      28.3       12.5        9.0       61.5       77.0       98.8       98.6:       1.2        1.4
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  :        31:         9          9         10         13         13         27         27:
Old  :        31:         9          9         10         13         13         27         27:
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  :                 61.1       76.1       83.5       85.7       31.8       33.7       38.6       39.3
Old  :                 61.1       76.1       83.5       85.7       31.8       33.7       38.6       39.3
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated March 21, 2008