A blast higher by Nvidia after the AI chipmaker reported another blowout quarter sent Wall Street sharply higher in early trading. The S&P 500 rose 1.2% in the first few minutes of trading Thursday, and the tech-heavy Nasdaq added almost 2%. The Dow Jones Industrial Average, which has a smaller weighting in tech stocks, rose 246 points, or 0.6%. Nvidia jumped more than 12% after reporting that its revenue and profit soared in the latest quarter thanks to booming demand for its chips used for artificial intelligence. Overnight, Japan's Nikkei 225 surged to an all-time high.
