 Shares of Playtika Holding Corp. PLTK, -11.80 shed 3.1 in premarket trading Tuesday, after the Israel-based mobile games company reported net income that rose nearly four-fold but revenue that came up shy of expectations, and provided a downbeat full-year outlook. Net income rose to 98.6 million, or 20 cents a share, from 25.7 million, or 9 cents a share, in the year-ago period. 