YEXT - AMBA OIBR.C and YEXT among tech movers August, 30 2019 03:04 PM Yext Inc. Gainers: Eltek (NASDAQ:ELTK) +46%. Oi S.A. (OIBR-C) +24%. Inseego (NASDAQ:INSG) +20%. SeaChange International (NASDAQ:SEAC) +19%. Ambarella (NASDAQ:AMBA) +17%.More news on: Eltek Ltd., Inseego Corp., SeaChange International, Inc., Tech stocks news, Stocks on the move, Read more ...