Which 1929 U.S. stock-market crash is commonly called the Wall Street Crash?

The 1929 U.S. stock-market crash commonly called the Wall Street Crash was the Wall Street Crash of 1929.

Share prices had risen dramatically during the 1920s, with widespread buying on margin. In October 1929, selling accelerated across the New York Stock Exchange. Black Thursday came on October 24, followed by Black Monday on October 28 and Black Tuesday on October 29.

The crash did not single-handedly cause the Great Depression, but it severely damaged confidence, wealth, and investment. Bank failures, falling production, unemployment, and deflation deepened the economic downturn during the following years.

A common mix-up is treating the crash and the Great Depression as identical terms. The crash was a market event, while the depression was a much longer international economic crisis. U.S. stocks did not regain their 1929 peak until 1954.