VIX FUTURES - CBOE FUTURES EXCHANGE                                  Code-1170E1
FUTURES ONLY POSITIONS AS OF 05/24/11                         |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  LONG  | SHORT  |SPREADS |  LONG  | SHORT  |  LONG  | SHORT  |  LONG  | SHORT
--------------------------------------------------------------------------------
($1000 X INDEX)                                      OPEN INTEREST:      235,635
COMMITMENTS
  25,608   45,959   46,329  141,435  124,811  213,372  217,099   22,263   18,536

CHANGES FROM 05/17/11 (CHANGE IN OPEN INTEREST:     -8,511)
  -4,747    8,369    1,160    1,254  -16,714   -2,333   -7,185   -6,178   -1,326

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    10.9     19.5     19.7     60.0     53.0     90.6     92.1      9.4      7.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      124)
      43       34       56       25       25      108       96
 

Updated May 27, 2011