新浪财经隔夜要闻大事汇总：2026年1月1日

Market - US stock market closed slightly lower on January 1, with the S&P 500 index declining for four consecutive days, but all three major indices recorded gains for 2025, with the S&P 500 up 16.4%, Nasdaq benefiting from the AI boom up 20.36%, and Dow Jones up 12.97% [2][4] - Nvidia topped the trading volume on January 1 but fell 0.55%, with reports indicating significant price increases for GPUs starting in early 2026 due to rising memory costs [3][4] - Popular Chinese stocks saw a general decline, with XPeng down 4.65% and NIO down 7.27%, while the Nasdaq Golden Dragon China Index fell 1.13% [4][3] Commodities - International oil prices experienced their largest annual decline since 2020, with a drop of over 18% in 2025, attributed to OPEC+ production increases and concerns over tariff policies [5] - Gold prices fell slightly but still recorded a cumulative increase of over 60% for 2025, while silver saw an annual increase of approximately 148% [6][5] Company - Google achieved its best annual performance on Wall Street since 2009, with Alphabet's stock rising 65% in 2025, driven by strong momentum in its AI business [22] - Warren Buffett officially retired as CEO of Berkshire Hathaway on December 31, 2025, marking a significant transition in the investment community [24] - Michael Burry clarified that he is not shorting Tesla, despite previously expressing concerns about its high valuation [25] - Nvidia is investing in Brookfield's AI infrastructure fund, aiming to lower AI development costs and compete in the cloud computing market [28]