10月22日，美股半导体板块集体走低，费城半导体指数下跌5.8%，创7月29日以来新低。成分股中，AMD跌7.21%，英特尔跌6.57%，应用材料跌6.57%，Arm跌6.75%，希捷科技跌7.81%，西部数据跌6.95%；美光科技跌4.29%，英伟达跌3.93%，台积电跌3.97%，博通跌3.79%，阿斯麦跌4.83%。存储及半导体设备、芯片设计等多个细分方向同步承压。此外，泛林集团跌9.78%，Lumentum跌9.24%，Coherent跌11.81%，三倍做多半导体ETF跌17.09%。
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