VIX FUTURES - CBOE FUTURES EXCHANGE
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/19/05          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       11,981
COMMITMENTS
   8,410    1,603      436      237    9,350    9,083   11,389    2,898      592

CHANGES FROM 04/12/05 (CHANGE IN OPEN INTEREST:        522)
     709      223        1      -38      614      672      838     -150     -316

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    70.2     13.4      3.6      2.0     78.0     75.8     95.1     24.2      4.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       37)
      23        4        6        2        6       29       14
 

Updated April 22, 2005