VIX FUTURES - CBOE FUTURES EXCHANGE                                                                           
Commitments of Traders with Delta-adjusted Options and Futures Combined, May 3, 2005                     
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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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     :          : ($100 X VBI)                                                               :
     :          :                                                                            :
All  :    12,262:     7,567      1,079        600        561      9,035      8,728     10,714:     3,534      1,548
Old  :    12,262:     7,567      1,079        600        561      9,035      8,728     10,714:     3,534      1,548
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: April 26, 2005                       :
     :       520:       319       -247        101        129          3        549       -143:       -29        663
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      61.7        8.8        4.9        4.6       73.7       71.2       87.4:      28.8       12.6
Old  :     100.0:      61.7        8.8        4.9        4.6       73.7       71.2       87.4:      28.8       12.6
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  :        42:        25          5          9          5          5         35         18:
Old  :        42:        25          5          9          5          5         35         18:
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  :                 43.4       79.2       55.5       84.6       43.4       77.0       54.6       80.0
Old  :                 43.4       79.2       55.5       84.6       43.4       77.0       54.6       80.0
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated May 6, 2005