美股三大指数开盘涨跌不一，道指涨0.1%，纳指跌0.05%，标普500指数涨0.03%

Market Overview - The three major U.S. stock indices opened mixed, with the Dow Jones Industrial Average up by 0.1%, the Nasdaq down by 0.05%, and the S&P 500 up by 0.03% [1] Precious Metals Sector - Gold and silver-related stocks declined significantly, with Hecla Mining falling over 10%, First Majestic Silver down more than 9%, and Pan American Silver dropping over 8% [1] - Harmony Gold and Kinross Gold both experienced declines of over 9% [1]