Weak US jobs data pummels stock markets as a global sell-off whips back to Wall Street

A person walks in front of an electronic stock board showing Japan's Nikkei 225 index, Aug. 2, 2024, in Tokyo.

U.S. stocks are tumbling Friday on worries about whether the U.S. economy can hold up amid the countdown for a cut to interest rates by the Federal Reserve, as a sell-off for stocks whips all the way around the world back to Wall Street.