On which date did the Dow Jones reach its 1929 Wall Street Crash peak before collapsing?

The Dow Jones Industrial Average reached its 1929 peak on 3 September 1929, before the Wall Street Crash accelerated.

The index closed at 381.17 on that date, ending a powerful bull market fueled by expanding consumer credit, speculation, and optimism about American industry. The peak did not mark the first dramatic sell-off, but it became the starting point for measuring the subsequent collapse.

Selling intensified in October. Black Thursday came on 24 October, Black Monday on 28 October, and Black Tuesday on 29 October, when panic selling produced another devastating fall. The Dow continued declining until July 1932, when it reached a low of 41.22.

The 1929 crash helped deepen the Great Depression, although historians generally describe the depression as the result of multiple economic and financial causes rather than the crash alone.