VIX FUTURES - CBOE FUTURES EXCHANGE                                                                     Code-1170E1
Commitments of Traders - Futures Only, August 12, 2008                 
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : ($1000 X INDEX)                                                            :
     :          :                                                                            :
All  :    47,016:     8,105      7,582     10,615     18,999     23,769     37,719     41,966:     9,297      5,050
Old  :    47,016:     8,105      7,582     10,615     18,999     23,769     37,719     41,966:     9,297      5,050
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: August 5, 2008                       :
     :      -176:       -68     -3,040      4,190     -4,405     -1,046       -283        104:       107       -280
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      17.2       16.1       22.6       40.4       50.6       80.2       89.3:      19.8       10.7
Old  :     100.0:      17.2       16.1       22.6       40.4       50.6       80.2       89.3:      19.8       10.7
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  :        25:        10          6          5          9          5         22         13:
Old  :        25:        10          6          5          9          5         22         13:
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  :                 43.0       65.9       59.2       84.5       20.8       42.2       31.4       49.0
Old  :                 43.0       65.9       59.2       84.5       20.8       42.2       31.4       49.0
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 


Updated August 15, 2008