VIX FUTURES - CBOE FUTURES EXCHANGE                                                                           
Commitments of Traders with Delta-adjusted Options and Futures Combined, May 24, 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  :    11,093:     6,216      1,092        243      1,930      8,821      8,389     10,156:     2,704        937
Old  :    11,093:     6,216      1,092        243      1,930      8,821      8,389     10,156:     2,704        937
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 17, 2005                         :
     :    -3,637:      -952        490       -305        796     -1,332       -461     -1,147:    -3,176     -2,490
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      56.0        9.8        2.2       17.4       79.5       75.6       91.6:      24.4        8.4
Old  :     100.0:      56.0        9.8        2.2       17.4       79.5       75.6       91.6:      24.4        8.4
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  :        35:        21          2          4          8          6         33         10:
Old  :        35:        21          2          4          8          6         33         10:
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  :                 46.3       80.6       60.5       90.7       46.3       77.9       60.5       85.4
Old  :                 46.3       80.6       60.5       90.7       46.3       77.9       60.5       85.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated May 27, 2005