Changes to Regulation SHO Threshold Security List (Trade Date - 04-11-07)

Additions:
ASTT
GLRAF
HLUKY
LPHC
MXWL
NEMFF
PGSW
RAWPW
SHRP
SUHJY
SXRFF
Subtractions:
AOOR
CINT
HOKU
IOTN
ISBL
ITMSF
STKP
TOLWF
WGLT