```
VIX FUTURES - CBOE FUTURES EXCHANGE                                                                     Code-1170E1
Commitments of Traders - Futures Only, May 10, 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  :   228,037:    29,676     41,147     40,290    127,440    126,989    197,406    208,426:    30,631     19,611
Old  :   228,037:    29,676     41,147     40,290    127,440    126,989    197,406    208,426:    30,631     19,611
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 3, 2011                          :
     :    13,029:       873        744     -1,251      8,799     10,271      8,421      9,764:     4,608      3,265
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      13.0       18.0       17.7       55.9       55.7       86.6       91.4:      13.4        8.6
Old  :     100.0:      13.0       18.0       17.7       55.9       55.7       86.6       91.4:      13.4        8.6
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  :       122:        41         31         47         28         30        102         93:
Old  :       122:        41         31         47         28         30        102         93:
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  :                 40.9       33.7       48.4       47.8       31.0       29.1       35.2       37.1
Old  :                 40.9       33.7       48.4       47.8       31.0       29.1       35.2       37.1
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
```

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Updated May 13, 2010