VIX FUTURES - CBOE FUTURES EXCHANGE
OPTION AND FUTURES COMBINED POSITIONS AS OF 02/01/05          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:        9,356
COMMITMENTS
   4,613      629      301    2,259    7,634    7,173    8,564    2,183      792

CHANGES FROM 01/25/05 (CHANGE IN OPEN INTEREST:        322)
      -4       -3       11     -111       40     -104       48      426      274

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    49.3      6.7      3.2     24.1     81.6     76.7     91.5     23.3      8.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
      13        3        4        6        6       23       11
 

Updated February 4, 2005