VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/29/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:       53,865
COMMITMENTS
  10,122   24,396    3,998   30,021   22,020   44,141   50,414    9,724    3,451

CHANGES FROM 04/22/08 (CHANGE IN OPEN INTEREST:      5,930)
   1,191       90    1,239    2,974    4,111    5,404    5,440      526      490

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    18.8     45.3      7.4     55.7     40.9     81.9     93.6     18.1      6.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       32)
      13        9        9       10        5       28       18
 

Updated May 2, 2008