Which U.S. stock exchange did the 1929 Wall Street Crash primarily center on?

The 1929 Wall Street Crash primarily centered on the New York Stock Exchange.

The New York Stock Exchange, located on Wall Street in Manhattan, was the principal U.S. marketplace for listed shares during the 1920s. Speculation, buying shares on margin, and confidence in continually rising prices helped inflate the market before the collapse.

Heavy selling began in October 1929, with especially severe sessions on Black Thursday, Black Monday, and Black Tuesday. The exchange's trading systems struggled with enormous order volumes, and prices fell rapidly as investors attempted to exit.

The crash was followed by a prolonged bear market, bank failures, business contraction, and severe unemployment. The exchange itself continued operating; the crash was not caused by its permanent closure. Nasdaq, founded in 1971, did not exist during the 1929 event.