VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 10/09/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:       79,984
COMMITMENTS
  13,282   10,026   13,824   44,005   50,559   71,111   74,409    8,873    5,575

CHANGES FROM 10/02/07 (CHANGE IN OPEN INTEREST:      3,715)
   1,093     -840    1,759      939    2,652    3,791    3,571      -76      144

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    16.6     12.5     17.3     55.0     63.2     88.9     93.0     11.1      7.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       45)
      17       12       11       12        9       36       27
 

Updated October 12, 2007