VIX FUTURES - CBOE FUTURES EXCHANGE
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/05/05          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       10,631
COMMITMENTS
   7,753      950      585      275    8,994    8,613   10,529    2,018      102

CHANGES FROM 03/29/05 (CHANGE IN OPEN INTEREST:        334)
     365       45      -32      -24    1,177      309    1,190       25     -856

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    72.9      8.9      5.5      2.6     84.6     81.0     99.0     19.0      1.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       41)
      24        4        8        3        5       33       16
 

Updated April 8, 2005