美股三大指数涨跌不一，现货黄金重挫超5%

Group 1: Market Overview - The U.S. stock market showed mixed results, with the Dow Jones up by 0.33%, while the Nasdaq and S&P 500 fell by 0.33% and 0.10% respectively [1] - Precious metals continued to decline, with spot gold dropping by 5% to $4135.46 per ounce and spot silver falling over 7.3% to $48.45 per ounce [1] Group 2: Global News - The U.S. government shutdown has reached its third-longest duration in history at 21 days, with no signs of resolution as negotiations between parties remain stalled [2] Group 3: Industry Insights - The global storage industry is entering a super cycle, with DDR4 memory prices expected to surge over twofold by 2025, making them a popular investment among industry professionals and gamers [3] - Barclays has adjusted its investment strategy in the AI sector, recommending a focus on major players like Nvidia, Broadcom, and AMD, while indicating that some stocks may have peaked [4] Group 4: Banking Sector - Concerns have resurfaced in the U.S. banking sector as regional banks Zions Bancorp and Western Alliance Bancorp experienced significant stock declines of 13% and 11% respectively, due to issues related to bad commercial mortgage loans [5] Group 5: Company News - Warren Buffett's Berkshire Hathaway sold a substantial amount of Apple stock, which may be viewed as a missed opportunity, as the company's stock has reached new highs, potentially costing Buffett $50 billion in unrealized gains [6]