VIX FUTURES - CBOE FUTURES EXCHANGE                                                                           
Commitments of Traders - Futures Only, July 19, 2005                   
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : ($100 X VBI)                                                               :
     :          :                                                                            :
All  :    11,922:     4,932      2,432        594      2,585      7,482      8,111     10,508:     3,811      1,414
Old  :    11,922:     4,932      2,432        594      2,585      7,482      8,111     10,508:     3,811      1,414
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: July 12, 2005                        :
     :      -932:    -1,538          2         32        222     -1,278     -1,284     -1,244:       352        312
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      41.4       20.4        5.0       21.7       62.8       68.0       88.1:      32.0       11.9
Old  :     100.0:      41.4       20.4        5.0       21.7       62.8       68.0       88.1:      32.0       11.9
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  :        41:        23          2         10          6          6         38         17:
Old  :        41:        23          2         10          6          6         38         17:
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  :                 43.7       77.9       51.9       84.4       41.0       70.4       46.7       75.5
Old  :                 43.7       77.9       51.9       84.4       41.0       70.4       46.7       75.5
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated July 22, 2005