Which exchange experienced the 1929 Wall Street crash that began with the October sell-off?

The New York Stock Exchange experienced the 1929 Wall Street crash that began with the October sell-off.

The crash centered on trading in New York and unfolded through several severe sessions in October 1929. The Dow Jones Industrial Average had reached a peak in September before confidence weakened. Heavy selling then occurred on days later remembered as Black Thursday, Black Monday, and Black Tuesday.

The New York Stock Exchange was the leading U.S. securities market and operated from its Wall Street building in Manhattan. Its listed shares included many major industrial companies whose prices had risen during the speculative boom of the 1920s.

The crash did not single-handedly cause the Great Depression. Banking failures, falling investment, reduced consumption, debt problems, and weaknesses in the international economy also played important roles. Another common confusion is that the American Stock Exchange was a separate exchange; the famous 1929 Wall Street crash is conventionally associated with the New York Stock Exchange.