VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 06/01/10          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:       82,619
COMMITMENTS
   2,360    9,017    4,492   68,224   57,505   75,076   71,014    7,543   11,605

CHANGES FROM 05/25/10 (CHANGE IN OPEN INTEREST:      5,529)
    -548      865      855    5,887    4,572    6,194    6,292     -665     -763

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     2.9     10.9      5.4     82.6     69.6     90.9     86.0      9.1     14.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       44)
       4       13       10       21       26       32       42
 

Updated June 4, 2010