VIX FUTURES - CBOE FUTURES EXCHANGE
OPTION AND FUTURES COMBINED POSITIONS AS OF 07/26/05          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       11,177
COMMITMENTS
   5,094    2,432      624    2,767    7,692    8,485   10,748    2,692      429

CHANGES FROM 07/19/05 (CHANGE IN OPEN INTEREST:       -745)
     162        0       30      182      210      374      240   -1,119     -985

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    45.6     21.8      5.6     24.8     68.8     75.9     96.2     24.1      3.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       42)
      23        2       11        6        6       38       18
 

Updated July 29, 2005