```
VIX FUTURES - CBOE FUTURES EXCHANGE                                                                     Code-1170E1
Commitments of Traders - Futures Only, September 6, 2011               
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : ($1000 X INDEX)                                                            :
     :          :                                                                            :
All  :   166,198:    20,479     35,418     33,990     93,558     79,030    148,027    148,438:    18,171     17,760
Old  :   166,198:    20,479     35,418     33,990     93,558     79,030    148,027    148,438:    18,171     17,760
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: August 30, 2011                      :
     :     3,906:    -1,192        350     -4,626      5,624      4,746       -194        470:     4,100      3,436
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      12.3       21.3       20.5       56.3       47.6       89.1       89.3:      10.9       10.7
Old  :     100.0:      12.3       21.3       20.5       56.3       47.6       89.1       89.3:      10.9       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  :       105:        26         29         49         28         28         92         88:
Old  :       105:        26         29         49         28         28         92         88:
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  :                 32.2       34.1       44.1       45.9       25.8       27.5       33.0       34.4
Old  :                 32.2       34.1       44.1       45.9       25.8       27.5       33.0       34.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
```

----

Updated September 9, 2011