Which 1929 trading day became known as Black Thursday after heavy selling hit U.S. stocks?

October 24, 1929, became known as Black Thursday after heavy selling hit U.S. stocks.

The Dow Jones Industrial Average fell sharply that day as panic selling overwhelmed the New York Stock Exchange. Trading volume reached a then-record level, and the market’s decline attracted nationwide attention. A group of major bankers later met and bought shares in an effort to restore confidence, temporarily calming the market.

That intervention did not end the crash. Selling resumed the following week, and October 28 became Black Monday. October 29, known as Black Tuesday, brought another severe decline and is the date most often used in popular summaries of the 1929 crash. Black Thursday was therefore an early major shock, not the final low.

The crash followed a long period of speculation during the 1920s. Many investors bought shares with borrowed money, magnifying both gains and losses. The market continued falling after October 1929 and reached a much lower bottom in 1932. The wider economic collapse became associated with the Great Depression.