VIX FUTURES - CBOE FUTURES EXCHANGE
OPTION AND FUTURES COMBINED POSITIONS AS OF 06/28/05          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       12,210
COMMITMENTS
   6,123    2,017      856    2,236    8,636    9,215   11,509    2,995      701

CHANGES FROM 06/21/05 (CHANGE IN OPEN INTEREST:        701)
    -134      273       70      396      106      332      449      369      252

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    50.1     16.5      7.0     18.3     70.7     75.5     94.3     24.5      5.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       38)
      21        2       10        4        6       34       17
 

Updated July 1, 2005