VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 06/26/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:       49,542
COMMITMENTS
   8,096   10,498    3,664   25,981   26,917   37,741   41,079   11,801    8,463

CHANGES FROM 06/19/07 (CHANGE IN OPEN INTEREST:          8)
    -789   -2,904      267   -2,324      412   -2,846   -2,225    2,854    2,233

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    16.3     21.2      7.4     52.4     54.3     76.2     82.9     23.8     17.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       36)
      18        9        9        8        6       32       18
 

Updated June 29, 2007