VIX FUTURES - CBOE FUTURES EXCHANGE
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/22/05          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       10,599
COMMITMENTS
   6,693      767      992      464    8,038    8,149    9,797    2,450      802

CHANGES FROM 03/15/05 (CHANGE IN OPEN INTEREST:     -1,415)
    -472     -669      541      -76     -187       -7     -315   -1,408   -1,100

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    63.1      7.2      9.4      4.4     75.8     76.9     92.4     23.1      7.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       40)
      22        6       11        4        5       35       17
 

Updated March 25, 2005