8月19日，道指期货跌0.03%，标普500期货跌0.11%，纳指期货跌0.38%，夜盘情绪偏空。
存储概念股续跌，闪迪跌超3%，SK海力士、西部数据跌超2%，美光科技、希捷科技跌超1%；
光通信概念股普跌，Applied Optoelectronics跌超3%，Lumentum、Coherent、Credo、Astera Labs跌超2%；
Keysight Technologies涨超2%，第三财季业绩超预期，第四财季指引乐观。
8月19日，道指期货跌0.03%，标普500期货跌0.11%，纳指期货跌0.38%，夜盘情绪偏空。
存储概念股续跌，闪迪跌超3%，SK海力士、西部数据跌超2%，美光科技、希捷科技跌超1%；
光通信概念股普跌，Applied Optoelectronics跌超3%，Lumentum、Coherent、Credo、Astera Labs跌超2%；
Keysight Technologies涨超2%，第三财季业绩超预期，第四财季指引乐观。
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