道琼斯指数5月1日（周四）开盘上涨209.11点，涨幅0.51%，报40878.47点；标普500指数5月1日（周四）开盘上涨52.83点，涨幅0.95%，报5621.85点；纳斯达克综合指数5月1日（周四）开盘上涨351.04点，涨幅2.01%，报17797.38点。
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