VIX FUTURES - CBOE FUTURES EXCHANGE                                                                     Code-1170E1
Commitments of Traders - Futures Only, May 23, 2006                    
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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  :    31,475:     3,890      4,536      2,687     21,805     20,629     28,382     27,852:     3,093      3,623
Old  :    31,475:     3,890      4,536      2,687     21,805     20,629     28,382     27,852:     3,093      3,623
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 16, 2006                         :
     :    -2,230:    -1,630     -3,045      1,170     -1,925       -851     -2,385     -2,726:       155        496
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      12.4       14.4        8.5       69.3       65.5       90.2       88.5:       9.8       11.5
Old  :     100.0:      12.4       14.4        8.5       69.3       65.5       90.2       88.5:       9.8       11.5
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  :        45:        14          9         16          9          5         36         28:
Old  :        45:        14          9         16          9          5         36         28:
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  :                 66.8       71.2       82.1       83.0       53.5       49.1       58.0       57.4
Old  :                 66.8       71.2       82.1       83.0       53.5       49.1       58.0       57.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated May 26, 2006