VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 08/06/13          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:      402,545
COMMITMENTS
  99,177  203,574   73,760  205,576  100,281  378,513  377,615   24,032   24,930

CHANGES FROM 07/30/13 (CHANGE IN OPEN INTEREST:     39,852)
     303   33,100   -1,427   37,903    7,538   36,779   39,211    3,073      641

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    24.6     50.6     18.3     51.1     24.9     94.0     93.8      6.0      6.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      173)
      51       77       76       36       32      134      144



Updated August 9, 2013