VIX FUTURES - CBOE FUTURES EXCHANGE                                                                     Code-1170E1
Commitments of Traders - Futures Only, September 4, 2012               
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : ($1000 X INDEX)                                                            :
     :          :                                                                            :
All  :   367,377:    75,560    142,887     66,356    199,105    131,954    341,021    341,197:    26,356     26,180
Old  :   367,377:    75,560    142,887     66,356    199,105    131,954    341,021    341,197:    26,356     26,180
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: August 28, 2012                      :
     :     7,442:    -3,155       -177      2,969      4,890      3,769      4,704      6,561:     2,738        881
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      20.6       38.9       18.1       54.2       35.9       92.8       92.9:       7.2        7.1
Old  :     100.0:      20.6       38.9       18.1       54.2       35.9       92.8       92.9:       7.2        7.1
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  :       157:        38         71         69         30         37        115        141:
Old  :       157:        38         71         69         30         37        115        141:
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  :                 49.8       30.5       60.6       42.0       44.3       22.2       49.7       32.0
Old  :                 49.8       30.5       60.6       42.0       44.3       22.2       49.7       32.0
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 


Updated September 4, 2012