美股三大指数携手三连跌，金属上涨潮卷土重来，中概股涨跌互现

Market Overview - The U.S. stock market indices experienced slight declines for the third consecutive trading day, with the S&P 500 down 0.14% to 6896.24 points, the Nasdaq down 0.24% to 23419.08 points, and the Dow Jones down 0.2% to 48367.06 points, reflecting a lack of significant market catalysts during the year-end holiday period [1][3]. Metal Market - Following a significant drop, metals such as silver and copper rebounded sharply, with Comex silver futures rising nearly 8% after a 7% drop, and London spot silver increasing over 5%. Copper also saw a daily increase of over 3% after a previous decline [5][7]. - Nickel prices surged by 6% due to Indonesia's plans to cut production, reaching a nearly one-year high [5]. Company Performance - In the tech sector, notable stock movements included Nvidia down 0.36%, Apple down 0.25%, Google-A up 0.09%, and Meta up 1.10% after announcing the acquisition of Manus. Tesla saw a decline of 1.13% [8]. - Chinese stocks showed mixed results, with the Nasdaq China Golden Dragon Index down 0.27%. Alibaba fell 0.76%, while Baidu rose 4.39% [8]. Tesla Deliveries - Tesla's stock dropped over 1% after the company published delivery estimates for Q4 2025, projecting 422,850 vehicle deliveries, a 15% year-over-year decline. Other analysts estimated deliveries at 440,907, reflecting an 11% decrease [9][11]. Investment Activities - SoftBank has reportedly completed a $40 billion investment commitment to OpenAI, marking one of the largest private financings in history and enhancing SoftBank's strategic positioning in the AI sector [12]. - Nvidia is in advanced talks to acquire Israeli AI startup AI21 Labs for up to $3 billion, focusing on its highly skilled workforce [14].