英伟达市值一夜蒸发1429亿美元

Group 1 - The U.S. stock market experienced a "roller coaster" day on November 20, 2025, with all three major indices closing down despite an initial strong performance driven by Nvidia's earnings report [1][2] - The Dow Jones index fell by 0.84%, the S&P 500 index dropped by 1.56%, and the Nasdaq Composite index decreased by 2.15% [1][2] Group 2 - Technology stocks, particularly AI-related stocks, faced significant sell-offs, with Nvidia's stock price reversing from a gain to a loss, closing down over 3% and resulting in a market cap loss of approximately $142.9 billion [4] - The Philadelphia Semiconductor Index plummeted by 4.77% as the entire tech sector suffered from valuation concerns and fears of a potential bubble in the AI space [4] - The Federal Reserve's interest rate cut expectations cooled after the release of strong September non-farm payroll data, which showed an increase of 119,000 jobs, far exceeding the market expectation of 50,000 [4] - The probability of a rate cut in December dropped to below 30% according to CME's FedWatch tool, influenced by hawkish comments from several Fed officials [4] - Market sentiment shifted towards risk aversion, with the CBOE Volatility Index (VIX) rising to 26.42, marking a seven-month high, as funds flowed from equities to traditional safe-haven assets like the U.S. dollar and government bonds [4]