VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/23/13          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:      381,591
COMMITMENTS
  95,340  165,713   72,352  189,942  117,041  357,634  355,106   23,957   26,485

CHANGES FROM 04/16/13 (CHANGE IN OPEN INTEREST:    -73,503)
 -14,407  -33,732    1,409  -54,757  -33,859  -67,755  -66,182   -5,748   -7,321

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    25.0     43.4     19.0     49.8     30.7     93.7     93.1      6.3      6.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      161)
      53       60       75       32       33      129      135
 

Updated April 26, 2013