```
VIX FUTURES - CBOE FUTURES EXCHANGE                                                                     Code-1170E1
Commitments of Traders - Futures Only, September 13, 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  :   165,892:    16,631     33,806     38,682     95,107     76,863    150,420    149,351:    15,472     16,541
Old  :   165,892:    16,631     33,806     38,682     95,107     76,863    150,420    149,351:    15,472     16,541
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: September 6, 2011                    :
     :      -306:    -3,848     -1,612      4,692      1,549     -2,167      2,393        913:    -2,699     -1,219
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      10.0       20.4       23.3       57.3       46.3       90.7       90.0:       9.3       10.0
Old  :     100.0:      10.0       20.4       23.3       57.3       46.3       90.7       90.0:       9.3       10.0
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  :       107:        25         32         50         29         30         94         91:
Old  :       107:        25         32         50         29         30         94         91:
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  :                 33.6       31.8       46.3       44.7       23.7       23.9       30.6       30.5
Old  :                 33.6       31.8       46.3       44.7       23.7       23.9       30.6       30.5
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
```

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Updated September 16, 2011