VIX FUTURES - CBOE FUTURES EXCHANGE
OPTION AND FUTURES COMBINED POSITIONS AS OF 06/07/05          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       12,318
COMMITMENTS
   6,988    1,731      339    2,127    9,676    9,454   11,746    2,864      572

CHANGES FROM 05/31/05 (CHANGE IN OPEN INTEREST:      1,349)
     329      177      121      212      818      662    1,116      687      233

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    56.7     14.1      2.8     17.3     78.6     76.7     95.4     23.3      4.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       37)
      24        2        5        7        5       36       10
 

Updated June 10, 2005