VIX FUTURES - CBOE FUTURES EXCHANGE
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/24/05          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       11,093
COMMITMENTS
   6,216    1,092      243    1,930    8,821    8,389   10,156    2,704      937

CHANGES FROM 05/17/05 (CHANGE IN OPEN INTEREST:     -3,637)
    -952      490     -305      796   -1,332     -461   -1,147   -3,176   -2,490

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    56.0      9.8      2.2     17.4     79.5     75.6     91.6     24.4      8.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       35)
      21        2        4        8        6       33       10
 

Updated May 27, 2005