北京时间11月28日凌晨，美股三大指数集体收跌，道指跌0.31%，纳指跌0.60%，标普500指数跌0.38%。芯片股走弱，美光科技、博通跌逾3%，Arm跌超2%，英伟达、英特尔、AMD、台积电跌超1%。戴尔科技跌超12%，三季度营收、四季度业绩指引均不佳。中国自动驾驶公司小马智行正式登陆纳斯达克，上市首日收跌近8%。热门中概股集体上涨，纳斯达克中国金龙指数收涨2.81%，高途涨15%，爱奇艺涨超...
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