新浪财经隔夜要闻大事汇总：2026年1月28日

Market Overview - On January 28, the Dow Jones fell by over 400 points, while the S&P 500 index reached a historical high, driven by strong performance in technology stocks. Over 90 S&P 500 companies are set to report earnings this week, with investors focusing on capital expenditures and AI monetization. Despite some skepticism about AI, interest remains high. Health insurance stocks declined due to proposed payment cuts, and international trade issues are also under scrutiny. The Federal Reserve is expected to maintain interest rates, with potential hints of rate cuts later in the year [1][2]. Company Performance - UnitedHealth Group issued a revenue warning, leading to a significant drop in its stock price by 19.61%. This marks the first revenue decline in at least 30 years for the company, which is also facing federal funding cuts and a criminal investigation [2]. - Nvidia's stock fell by 1.1%, while Micron Technology rose by 5.44% following an investment announcement in Singapore. Amazon's stock increased by 2.63% as it plans to close its grocery and convenience stores [2]. International Markets - The Nasdaq Golden Dragon China Index rose by 0.48%, with notable gains from companies like TSMC and Alibaba, while Ctrip's stock fell by 2.39%. The market is awaiting earnings reports from major tech companies like Apple, Meta, and Microsoft [3]. - International oil prices surged due to a winter storm severely impacting U.S. oil production, with estimates of a daily loss of 2 million barrels. Brent and WTI futures both saw significant increases [4]. Commodity Prices - Gold prices reached a historical high, with spot gold rising by 3.52% to $5187.37 per ounce. COMEX gold futures also saw an increase, closing at $5175.10 per ounce [5]. European Market Dynamics - European stock markets rose, supported by a free trade agreement between India and the EU and positive corporate earnings reports. The Stoxx Europe 600 index increased by 0.6%, with strong performances from banking stocks [6]. Currency Movements - The U.S. dollar fell to a near four-year low against a basket of currencies, with the dollar index dropping by 0.84%. This decline was influenced by concerns over potential government shutdowns and trade tensions [4][6]. Consumer Confidence - U.S. consumer confidence dropped to its lowest level since 2014, with the index falling from a revised 94.2 to 84.5. This decline reflects growing pessimism about the economy and job market [7].