美国股市回吐涨幅，标普500指数涨幅收窄至0.2%，纳指涨幅收窄至0.2%。半导体指数涨0.7%。

Group 1 - The US stock market retraced its gains, with the S&P 500 index narrowing its increase to 0.2% [1] - The Nasdaq index also saw its gains narrow to 0.2% [1] - The semiconductor index experienced a rise of 0.7% [1]