纳指重挫2%！估值担忧加剧，美股三大股指齐跌

Market Overview - The U.S. stock market experienced significant declines, with the S&P 500 and Nasdaq indices recording their largest single-day drops in nearly a month, driven by concerns over high valuations following a surge in stock prices due to the AI boom [1] - The Dow Jones Industrial Average fell by 251.44 points to close at 47085.24, a decrease of 0.53%; the S&P 500 dropped 80.42 points to 6771.55, down 1.17%; and the Nasdaq Composite declined by 486.08 points to 23348.64, a drop of 2.04% [1] Sector Performance - Among the 11 major sectors in the S&P 500, 8 sectors declined, with the technology sector leading the losses, down 2.3%; the financial sector, however, saw gains [1] - The Philadelphia Semiconductor Index fell by 4%, negatively impacting overall market performance [1] Individual Stock Movements - Major tech stocks experienced declines: Microsoft down 0.52%, Amazon down 1.84%, Google A down 2.18%, Nvidia down 3.96%, Tesla down 5.15%, and Meta down 1.63%; only Apple saw a slight increase of 0.37% [1] - After-hours trading saw Super Micro Computer drop over 9% due to quarterly revenue falling short of market expectations; AMD fell about 3% despite slightly exceeding revenue expectations, as investors remained cautious about capital expenditure growth [2] Cryptocurrency Market - The cryptocurrency market faced pressure, with Ethereum dropping below $3100, a decline of 14%, and Bitcoin falling over 7%, nearing the $99,000 mark; related stocks also saw significant declines [2] Chinese Stocks - The Nasdaq Golden Dragon China Index fell by 2.05%, with many popular Chinese stocks declining, including Xiaoma Zhixing down nearly 10% and Futu Holdings down over 7%; however, Baidu saw a rise of 3% [2] Executive Insights - Executives from Morgan Stanley and Goldman Sachs expressed concerns about high stock market valuations and potential short-term adjustments, prompting investors to quickly retreat from high-growth sectors [2] - Chuck Carlson, CEO of Horizon Investment Services, noted that investors are increasingly focused on valuation issues, leading to profit-taking despite stable earnings from many companies [3] Commodity Market - International oil prices fell, with WTI crude oil futures down $0.49 to $60.56 per barrel, a decrease of 0.80%, and Brent crude down $0.45 to $64.44 per barrel, a drop of 0.69% [3] - COMEX gold futures decreased by $53.50, settling at $3960.50 per ounce, a decline of 1.33% [3]