Nvidia, Salesforce Lift Indexes

Nvidia shares rose nearly 9% Thursday, adding about $440 billion in market value, after the chipmaker reported fiscal second-quarter results and revenue guidance above Wall Street expectations. The stock topped $227 during the move, compared with less than $190 at the start of the year. The results eased investor concerns that artificial-intelligence spending was slowing, while analysts pointed to the possibility of Nvidia reaching $1 trillion in annual revenue. The rally helped lift the Nasdaq Composite 1.6%, the S&P 500 0.7% and the Dow Jones Industrial Average 0.2%, with Salesforce also gaining after stronger-than-expected profit.