VIX FUTURES - CBOE FUTURES EXCHANGE                                                                     Code-1170E1
Commitments of Traders - Futures Only, August 19, 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  :    50,691:     7,358     12,739      7,571     20,727     25,655     35,656     45,965:    15,035      4,726
Old  :    50,691:     7,358     12,739      7,571     20,727     25,655     35,656     45,965:    15,035      4,726
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: August 12, 2008                      :
     :     3,675:      -747      5,157     -3,044      1,728      1,886     -2,063      3,999:     5,738       -324
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      14.5       25.1       14.9       40.9       50.6       70.3       90.7:      29.7        9.3
Old  :     100.0:      14.5       25.1       14.9       40.9       50.6       70.3       90.7:      29.7        9.3
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  :        28:        12          7          9          9          4         25         16:
Old  :        28:        12          7          9          9          4         25         16:
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  :                 33.3       65.2       49.8       84.3       20.2       46.9       27.4       55.4
Old  :                 33.3       65.2       49.8       84.3       20.2       46.9       27.4       55.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 


Updated August 22, 2008