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美股市场整体表现 - 美股三大指数集体低开，道琼斯工业平均指数下跌390.58点至45677.00点，跌幅0.85% [1][2] - 纳斯达克指数下跌331.66点至22362.95点，跌幅1.46% [1][2] - 标普500指数下跌65.68点至6589.04点，跌幅0.99% [1][2] 半导体行业个股表现 - 纳微半导体股价大幅上涨超过23% [1] - AMD股价上涨1.1% [1] - 英特尔股价下跌超过3% [1] - 英伟达股价下跌2% [1] 中概股市场表现 - 纳斯达克中国金龙指数下跌2.5% [1] - 阿里巴巴股价下跌超过3% [1]

US stock market futures were flat ahead of the open and that's pretty much where they finished. There was a brief rise to a fresh intraday record high late in the day but that faded and the S&P 500 closed down 3 points to 6584, ending a four-day winning streak. The Nasdaq closed modestly higher, led by a 7% squeeze higher in Tesla shares.Closing changes:S&P 500 -0.1%Nasdaq Comp +0.5% (record high close)DJIA -0.6%Russell 2000 -0.8%Toronto TSX Comp -0.4%On the week:S&P 500 +1.6%Nasdaq Comp +2.0%Russell 2000 + ...

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