Ten minutes into Thursday's trading, the Nasdaq Composite Index, Dow Jones Industrial Average and broad S&P 500 Index had all advanced 0.6 to 0.8 percent.
The rebound comes after Wednesday's decline, when all three indices lost 1 percent or more after the Federal Reserve's latest interest rate announcement.
One of the engines driving the stock market is chip manufacturer Intel, up 12 percent, after President Donald Trump claimed on his social media service Truth Social that Intel has agreed with technology giant Apple to manufacture its chips in the United States.
The announcement has not been confirmed by the companies involved.
