昨夜，美股大跌，科技股跳水！美联储，最新发声！

Market Overview - On December 17, US stock indices closed lower, with technology stocks leading the decline. The Nasdaq fell over 400 points, while the Dow Jones dropped by 228.29 points, a decrease of 0.47%, closing at 47,885.97 points. The Nasdaq fell by 418.14 points, down 1.81%, ending at 22,693.32 points. The S&P 500 index decreased by 78.83 points, down 1.16%, closing at 6,721.43 points [1]. Federal Reserve Insights - Federal Reserve Governor Christopher Waller expressed support for further interest rate cuts to bring rates back to neutral levels, indicating that current rates are up to 100 basis points above neutral. He emphasized a gradual approach to rate cuts, suggesting that there is no need to rush [3]. Technology Sector Performance - The S&P 500 index saw seven sectors decline and four rise. The technology and communication services sectors led the declines with drops of 2.19% and 1.90%, respectively. Major tech stocks mostly fell, with ASML, Oracle, and AMD dropping over 5%, while Tesla and Broadcom fell over 4% [5]. AI-Related Stocks - AI-related stocks generally declined, with Nvidia down 3.8%, Broadcom down 4.5%, AMD down 5.3%, Oracle down 5.4%, and Tesla down 4.6%. Oracle faced significant setbacks in its AI infrastructure expansion plans, with its major data center partner, Blue Owl Capital, withdrawing support for a $10 billion project. However, Oracle stated that negotiations for the project are proceeding as planned [6]. Financial Sector Movements - The financial sector showed mixed results, with Mizuho Financial down over 2%, while American Express and Deutsche Bank fell over 1%. Conversely, American International Group rose over 1% [7]. Energy Sector Performance - The energy sector saw most stocks rise, with US Energy up over 5%, and ConocoPhillips and Occidental Petroleum up over 4%. Other major energy companies also experienced gains, while some smaller firms saw slight declines [7]. Chinese Stocks Performance - Most popular Chinese stocks declined, with the Nasdaq Golden Dragon China Index down 0.73%. Stocks like Huya, Pinduoduo, NIO, and Li Auto fell over 3%, while Baidu and New Oriental saw slight increases [7].