VIX FUTURES - CBOE FUTURES EXCHANGE
OPTION AND FUTURES COMBINED POSITIONS AS OF 06/21/05          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       11,509
COMMITMENTS
   6,257    1,744      786    1,840    8,530    8,883   11,060    2,626      449

CHANGES FROM 06/14/05 (CHANGE IN OPEN INTEREST:     -1,643)
    -273      166      212     -563   -1,620     -624   -1,242   -1,019     -401

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    54.4     15.2      6.8     16.0     74.1     77.2     96.1     22.8      3.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       39)
      22        2       10        5        6       36       17
 

Updated June 24, 2005