美股三大指数集体微跌，金银铜铝板块涨幅居前，中概股多数收涨

Market Overview - US stock market experienced slight declines on December 26, ending a five-day winning streak, with the Dow Jones down 0.04% at 48,710.97 points, S&P 500 down 0.03% at 6,929.94 points, and Nasdaq down 0.09% at 23,593.10 points [1][2] - For the week, the Dow Jones rose 1.2%, S&P 500 increased by 1.4%, and Nasdaq gained 1.22% [2] Analyst Insights - Tom Hainlin, a national investment strategist at U.S. Bank Asset Management, noted that the market is seeing profit-taking and buying on dips, with limited information available on corporate earnings and economic data, suggesting a focus on technical analysis and positioning [2] - Hainlin highlighted that the recent expansion trend in the stock market presents an opportunity for year-end trading, driven by financial and industrial sectors rather than technology [2] Economic Outlook - Craig Johnson, chief market technician at Piper Sandler, expressed confidence in 2026, citing benefits from the tax reform signed in July and interest rate cuts in Q4, which are favorable for the market [3] - The market remains constructive, supported by improving economic breadth and easing inflation, contributing to expectations of a holiday rally [3] Stock Performance - Major tech stocks showed mixed performance, with Nvidia rising 1.02% to its highest level since November 13, following a technology licensing agreement with AI chip startup Groq [4][5] - Other notable stock movements included Apple down 0.15%, Alphabet down 0.22%, Microsoft down 0.06%, Amazon up 0.06%, Meta down 0.64%, Broadcom up 0.55%, and Tesla down 2.10% [5] Sector Performance - The Philadelphia Semiconductor Index rose 0.05%, marking its sixth consecutive day of gains, with TSMC up 1.35% and ASML up 0.68% [6] - Precious metals saw significant gains, with silver prices exceeding $79 per ounce for the first time, and Silvercorp Metals rising 3.61% [6] Chinese Stocks - The Nasdaq Golden Dragon China Index increased by 0.72% for the week, with notable gains in Chinese stocks such as Xpeng up 6.18%, Li Auto up 3.93%, and NIO up 3.87% [6] Industry Developments - The US is re-evaluating its graphite mining strategy due to the rapid expansion of the global battery industry, with Titan Mining planning to commercialize graphite production by 2028, aiming for an annual output of approximately 40,000 tons [7] - Novo Nordisk's long-acting growth hormone, Noziv, has been approved in China for treating growth delays in children aged 2.5 years and older due to endogenous growth hormone deficiency [8] - Toyota plans to exceed a global production of 10 million vehicles by 2026, responding to strong demand for hybrid vehicles in North America [9]