VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/06/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       38,748
COMMITMENTS
   3,158    3,068    2,677   22,038   24,404   27,873   30,149   10,875    8,599

CHANGES FROM 02/27/07 (CHANGE IN OPEN INTEREST:      2,632)
    -546   -3,694    1,972   -1,069    1,429      357     -293    2,275    2,925

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.2      7.9      6.9     56.9     63.0     71.9     77.8     28.1     22.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
       8        5        6        9        6       20       14
 

Updated March 9, 2007