On the MoveKHC, OLED, TTD and STMP among notable after hour moversFeb. 21, 2019 5:41 PM ETSTMP, OLED, BYD, MDRX, CIVI, KHC, ASPN, ACIA, TTD, CASABy: Akanksha Bakshi, SA News Editor1 Comment Top Gainers: XOG +14.2%. TTD +10.5%. OLED +6.7%. BYD +5%. ACIA +4.9%. Top Losers: STMP -45%. ASPN -15.3%. KHC -14.3%. MDRX -11.4%. CASA -10.1%. Recommended For YouTrending AnalysisTrending News