美股尾盘跳水，道指跌超200点，英伟达业绩公布盘后涨5%

Market Overview - The three major U.S. stock indices declined, with the Nasdaq down over 0.5% [2] - The Dow Jones fell by 244.95 points, or 0.58%, closing at 42098.70 points, while the Nasdaq dropped 0.51% to 19100.94 points, and the S&P 500 decreased by 0.56% to 5888.55 points [2] - The long-term U.S. Treasury yields rose, with the 2-year Treasury yield approaching 4% [2] Company Performance - Nvidia reported strong earnings with revenue of $44.04 billion, a 69% year-over-year increase, surpassing market expectations of $43.31 billion [5] - Net profit for Nvidia grew by 26% to $18.8 billion, with adjusted EPS at $0.96, exceeding the expected $0.93 [5] - The data center segment, including AI chips, saw a 73% increase in sales, reaching $39.1 billion, accounting for 88% of total revenue [5] - Nvidia's gaming segment revenue was $3.8 billion, up 42%, while the automotive and robotics segment revenue grew by 72% to $567 million [5] Stock Buyback and Dividends - Nvidia spent $14.1 billion on stock buybacks during the quarter and paid $244 million in dividends [6] Future Outlook - Nvidia's CEO highlighted strong global demand for the company's AI infrastructure, projecting second-quarter revenue of $45 billion ±2%, while analysts had an average estimate of $45.9 billion [7] - The forecast includes an estimated revenue loss of about $8 billion due to recent export restrictions [7] Other Company Updates - Dick's Sporting Goods saw a 1.7% increase in stock price after reporting first-quarter earnings that exceeded expectations [8] - Okta experienced a significant drop of 16% in stock price, maintaining its full-year outlook but warning of potential risks related to economic uncertainty [9]