** Chinese online advertising and internet services provider Meitu 1357.HK rises 6.4% to HK$10.75; set for biggest one-day pct gain since July 31
** Co's founder, chairman and CEO Wu Zeyuan bought 700,000 shares at an avg of HK$10 in the open market on Thursday, raising his stake in co to 12.89% from 12.88%
** Says Wu may further increase his shareholdings in co
** Co's current market capitalisation at $6.10 billion
** YTD, stock gains 260.8%
($1 = HK$7.8142)
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))