美股三大指数集体收涨，纳指涨1.52%，标普500指数涨0.94%，道指涨0.75%。费城半导体指数涨超3%，创2月下旬以来收盘新高。

Group 1 - The three major U.S. stock indices closed higher, with the Nasdaq rising by 1.52%, the S&P 500 increasing by 0.94%, and the Dow Jones up by 0.75% [1] - The Philadelphia Semiconductor Index surged over 3%, reaching its highest closing level since late February [1]