VIX FUTURES - CBOE FUTURES EXCHANGE
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/15/05          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       12,014
COMMITMENTS
   7,165    1,436      451      540    8,225    8,156   10,112    3,858    1,902

CHANGES FROM 03/08/05 (CHANGE IN OPEN INTEREST:      1,623)
     360      318       82       31      437      473      837    1,150      786

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    59.6     12.0      3.8      4.5     68.5     67.9     84.2     32.1     15.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
      23        4        5        3        4       29       11
 

Updated March 18, 2005