VIX FUTURES - CBOE FUTURES EXCHANGE
OPTION AND FUTURES COMBINED POSITIONS AS OF 07/19/05          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       11,922
COMMITMENTS
   4,932    2,432      594    2,585    7,482    8,111   10,508    3,811    1,414

CHANGES FROM 07/12/05 (CHANGE IN OPEN INTEREST:       -932)
  -1,538        2       32      222   -1,278   -1,284   -1,244      352      312

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    41.4     20.4      5.0     21.7     62.8     68.0     88.1     32.0     11.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       41)
      23        2       10        6        6       38       17
 

Updated July 22, 2005