VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 10/10/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       57,977
COMMITMENTS
   4,668   10,968    1,440   41,810   40,072   47,918   52,480   10,059    5,497

CHANGES FROM 10/03/06 (CHANGE IN OPEN INTEREST:      2,048)
     308      391      650     -947     -123       11      918    2,037    1,130

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.1     18.9      2.5     72.1     69.1     82.7     90.5     17.3      9.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       8        7        2       10        5       20       13
 

Updated October 13, 2006