VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 07/12/11          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:      230,154
COMMITMENTS
  28,783   49,555   45,350  126,200  107,856  200,333  202,761   29,821   27,394

CHANGES FROM 07/05/11 (CHANGE IN OPEN INTEREST:     17,750)
  -2,366    2,366     -252   15,039    8,807   12,421   10,921    5,330    6,829

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    12.5     21.5     19.7     54.8     46.9     87.0     88.1     13.0     11.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      125)
      44       30       57       28       26      107       99
 

Updated July 15, 2011