VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
OPTION AND FUTURES COMBINED POSITIONS AS OF 02/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
($100 X VBI)                                         OPEN INTEREST:       23,241
COMMITMENTS
   3,988    5,507      568   15,579   15,178   20,135   21,253    3,106    1,988

CHANGES FROM 01/31/06 (CHANGE IN OPEN INTEREST:      3,765)
     933    1,816      140    5,256    2,177    6,329    4,133   -2,564     -368

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    17.2     23.7      2.4     67.0     65.3     86.6     91.4     13.4      8.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       41)
      24        5        9        6        5       35       17
 

Updated February 10, 2006