VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/22/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:       47,935
COMMITMENTS
   8,931   24,306    2,759   27,047   17,909   38,737   44,974    9,198    2,961

CHANGES FROM 04/15/08 (CHANGE IN OPEN INTEREST:     -4,705)
     117      533     -470   -3,260   -3,856   -3,613   -3,793   -1,092     -912

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    18.6     50.7      5.8     56.4     37.4     80.8     93.8     19.2      6.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       9        8        7        9        5       23       15
 

Updated April 25, 2008