10月23日，美股三大指数集体低开，道琼斯指数开盘下跌273.17点，跌幅0.64%，报42651.72点；标普500指数开盘下跌20.90点，跌幅0.36%，报5830.30点；纳斯达克综合指数开盘下跌91.85点，跌幅0.49%，报18481.28点。
特朗普概念股走高，Phunware涨逾19%，特朗普媒体科技集团涨逾2%。
新东方跌4%，其第一财季净利同比增近四成，但低于预期。
麦当劳跌逾7%，身陷美国严重大肠杆菌感染事件。
星巴克跌逾2%，业绩欠佳，暂缓发布指引。
高通跌超2%，ARM取消芯片设计授权。
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