Market Overview - The U.S. stock market closed mixed, with investors focusing on Nvidia's upcoming earnings report and concerns about the Federal Reserve's potential inaction in December [1] - The Dow Jones Industrial Average fell by 309.74 points (0.65%) to 47147.48, while the Nasdaq rose by 30.23 points (0.13%) to 22900.59 [3] - Seven out of eleven sectors in the S&P 500 index declined, with the materials sector down 1.18% and the financial sector down 0.97% [3] Nvidia and AI Sector - Nvidia is expected to be a focal point for Wall Street next week, with investors looking for signs of continued competition in AI technology [2] - Concerns have risen regarding the high valuations in the tech sector, particularly in AI, as any slight change in earnings or interest rate expectations could lead to significant market reactions [2] - The upcoming Nvidia earnings report is considered a critical event, with potential for a sharp decline in stock price if results disappoint [2] Company News - Walmart announced that John Furner will succeed Doug McMillon as President and CEO, effective February 1, 2026 [8] - Google plans to invest $40 billion in building three data centers in Texas, aiming to expand its presence amid competition from other tech firms [8] - Berkshire Hathaway disclosed a $4.3 billion investment in Alphabet, while reducing its stake in Apple, indicating a strategic shift in its investment portfolio [9] Stock Performance - Major tech stocks showed mixed performance, with Nvidia up 1.77% and Microsoft up 1.37%, while Amazon fell 1.22% and Google A dropped 0.78% [4] - Cidara Therapeutics surged 105% following an acquisition announcement by Merck, valued at approximately $9.2 billion [4] - StubHub's stock plummeted 21% after the company postponed its fourth-quarter earnings guidance, raising investor concerns [5] Chinese Stocks - The Nasdaq Golden Dragon China Index fell by 1.61%, with notable declines in stocks such as Futu Holdings down over 7% and Alibaba down over 3% [6]
美股指数涨跌不一,科技股反弹纳指止步三连跌,中概股多数下跌