BUZZ-Plus500: up on Playtech bid

** Retail forex trading co's shares up as much as8.9 pct after Playtech makes 400p per share bid

** Cash deal at 8.1 pct premium to Plus500's 370p close onFriday

** Nearly half of Plus500's daily avg volume gone through inthe first 30 minutes of trade

** Playtech's shares down 4 pct, easily top loseron FTSE midcap index

** Playtech also top loser on FTSE 350 Travel & Leisureindex, with 40 pct of its daily avg volume goingthrough in first half-hour of trade

** Plus500 lost c.60 pct of mkt cap in late May, afterattacks by hedge funds as co suspended some clients accounts (venkateshasoumithri.mamidipudi.thomsonreuters.com@reuters.net)

Playtech