VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/05/11          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:      181,288
COMMITMENTS
  28,565   24,115   33,766   98,524  109,402  160,855  167,283   20,433   14,005

CHANGES FROM 03/29/11 (CHANGE IN OPEN INTEREST:     -2,771)
   3,855    3,506     -689   -5,569   -4,202   -2,403   -1,385     -368   -1,386

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    15.8     13.3     18.6     54.3     60.3     88.7     92.3     11.3      7.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      109)
      41       29       40       26       26       90       82
 

Updated April 8, 2011