VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 06/07/11          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:      244,663
COMMITMENTS
  28,040   45,204   54,870  139,127  124,401  222,037  224,475   22,626   20,188

CHANGES FROM 05/31/11 (CHANGE IN OPEN INTEREST:      2,305)
  -3,518   -4,306    4,207    2,725      418    3,414      319   -1,109    1,986

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    11.5     18.5     22.4     56.9     50.8     90.8     91.7      9.2      8.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      134)
      46       34       65       28       29      118      108
 

Updated June 10, 2011