VIX FUTURES - CBOE FUTURES EXCHANGE                                                                           
Commitments of Traders - Futures Only, May 17, 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
-------------------------------------------------------------------------------------------------------------------
     :          : ($100 X VBI)                                                               :
     :          :                                                                            :
All  :    14,730:     7,168        602        548      1,134     10,153      8,850     11,303:     5,880      3,427
Old  :    14,730:     7,168        602        548      1,134     10,153      8,850     11,303:     5,880      3,427
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 10, 2005                         :
     :     2,078:      -593       -293          8        573        550        -12        265:     2,090      1,813
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      48.7        4.1        3.7        7.7       68.9       60.1       76.7:      39.9       23.3
Old  :     100.0:      48.7        4.1        3.7        7.7       68.9       60.1       76.7:      39.9       23.3
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  :        40:        21          5         11          5          5         36         18:
Old  :        40:        21          5         11          5          5         36         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  :                 34.6       68.5       44.9       74.3       34.6       63.1       43.4       66.7
Old  :                 34.6       68.5       44.9       74.3       34.6       63.1       43.4       66.7
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated May 20, 2005