道琼斯指数2月27日（周四）收盘下跌193.93点，跌幅0.45%，报43239.19点；标普500指数2月27日（周四）收盘下跌94.48点，跌幅1.59%，报5861.58点；纳斯达克综合指数2月27日（周四）收盘下跌530.84点，跌幅2.78%，报18544.42点。
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