U.S. stocks rose after the Federal Reserve lowered its benchmark interest rates by 50 basis points to a range of 4.75% to 5%. That was the first rate cut in over four years that marked the beginning of a monetary-easing cycle in the world's largest economy.

Stocks are heading for another disappointing September trading session, with the economy and tumbling artificial intelligence stock prices serving up a twin threat to markets. Dow Jones Industrial Ave