Which US stock-market crash began after the Dow Jones peak on September 3, 1929?

The US stock-market crash that began after the Dow Jones peak on September 3, 1929, was the Wall Street Crash of 1929.

The Dow’s 1929 peak preceded a sequence of sharp declines in October. Black Thursday arrived on October 24, followed by Black Monday on October 28 and Black Tuesday on October 29. These days became the most famous portion of the crash.

The market had risen dramatically during the 1920s, encouraged by speculation, margin buying, and confidence in continued economic expansion. When prices turned downward, leveraged investors faced demands for additional cash, which encouraged further selling.

The crash was a major financial shock, but historians do not treat it as the sole cause of the Great Depression. Bank failures, reduced demand, monetary policy, international debt problems, and trade restrictions also shaped the prolonged economic crisis. The Dow eventually fell about 89% from its 1929 peak to its 1932 low.