On what date did the U.S. stock market experience Black Tuesday in 1929?

Black Tuesday occurred on October 29, 1929, marking the most famous single day of the Wall Street Crash.

Investors sold roughly 16 million shares on the New York Stock Exchange, overwhelming buyers and sending prices sharply lower. The day followed Black Monday, October 28, when the Dow Jones Industrial Average had already fallen dramatically.

Black Tuesday did not by itself cause the entire Great Depression, but it became its defining financial symbol. The crash reflected years of speculation, buying stocks with borrowed money, weakening economic conditions, and fragile banking practices. The market continued falling after October 29, reaching a low in 1932.