Which U.S. stock index reached its 1929 peak on September 3 before the Wall Street Crash?

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

The Dow closed at 381.17 on September 3, 1929, after years of rising share prices and widespread speculation. That peak preceded the dramatic autumn sell-off that became the Wall Street Crash of 1929.

The market experienced major declines on Black Thursday, Black Monday, and Black Tuesday. Although prices later recovered temporarily, the Dow continued falling over the following years and reached its low for the bear market in July 1932.

The 1929 peak is often confused with the crash’s most famous dates. September 3 marked the high point, while October 24 and October 29 marked major panic sessions. The crash was one factor in the Great Depression, alongside banking failures, deflation, reduced investment, and international economic problems.