VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 09/09/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:       53,298
COMMITMENTS
  10,600   10,120    6,761   27,559   32,387   44,920   49,268    8,378    4,030

CHANGES FROM 09/02/08 (CHANGE IN OPEN INTEREST:      1,335)
     -82   -3,627      772      736    3,797    1,426      942      -91      393

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    19.9     19.0     12.7     51.7     60.8     84.3     92.4     15.7      7.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       33)
      17        6        7       10        6       30       16
 

Updated September 12, 2008