美股三大股指集体高开，道指涨0.21%，科技股普涨

Group 1 - The U.S. stock market opened with all three major indices rising, with the Dow Jones up by 0.21%, the Nasdaq increasing by 0.95%, and the S&P 500 gaining 0.65% [1] - Technology stocks experienced a broad increase, with TSMC rising by 4.5%, Dell Technologies up over 2.5%, and SanDisk increasing by nearly 3% [1]