During the 1929 Wall Street Crash, which U.S. stock index lost almost 90% from its peak to its 1932 low?

During the 1929 Wall Street Crash, the Dow Jones Industrial Average lost almost 90% from its peak to its 1932 low. The Dow had reached a record closing level of 381.17 on September 3, 1929, before a prolonged collapse erased most of its value.

The crash is often associated with October 24, known as Black Thursday, October 28, Black Monday, and October 29, Black Tuesday. However, the market’s decline continued well beyond those dramatic sessions. The Dow eventually reached its bear-market low of 41.22 on July 8, 1932.

A common mix-up is treating the 1929 crash and the entire Great Depression as exactly the same event. The crash helped deepen economic weakness, but the depression also involved bank failures, deflation, unemployment, reduced investment, and international policy problems. The Dow did not regain its 1929 closing high until 1954, making the episode a lasting reference point in financial history.