** Shares of marketing co Stagwell STGW.O soar 30% to $6.3, hitting highest since February
** Co and Palantir Technologies PLTR.O announce partnership around an AI-driven platform for marketers
** Reports Q3 adj. EPS of 24 cents, beating analysts' estimates of 22 cents, according to data compiled by LSEG
** Q3 rev of $743 mln also tops estimates of $730 mln
** Five of seven brokerages rate the stock "buy", two "hold" ; their median PT is $8- LSEG data
** Including session's move, stock down 3.5% YTD
(Reporting by Avinash P in Bengaluru)
((Avinash.p@thomsonreuters.com))