VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/06/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:       60,219
COMMITMENTS
   9,627   26,401    4,411   32,236   26,507   46,274   57,319   13,945    2,900

CHANGES FROM 04/29/08 (CHANGE IN OPEN INTEREST:      6,354)
    -495    2,005      413    2,215    4,487    2,133    6,905    4,221     -551

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    16.0     43.8      7.3     53.5     44.0     76.8     95.2     23.2      4.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       33)
      13       11        7        9        3       27       16
 

Updated May 9, 2008