On October 24, 1929, panic selling swept through the New York Stock Exchange in the session remembered as Black Thursday. Stock prices had already been falling, but the extraordinary rush to sell turned mounting anxiety into a market crisis. Nearly 12.9 million shares changed hands—a record volume that overwhelmed the systems used to report transactions and left investors struggling to follow rapidly changing prices.
As trading intensified, stock tickers lagged behind the market, spreading uncertainty through brokerage offices. Investors faced decisions based on delayed information, deepening the confusion. Leading bankers and investment firms stepped in to buy large blocks of stock, helping prices recover much of their early losses. By the close, the market was down only a few percentage points. The reprieve proved brief: renewed selling brought devastating declines on Black Monday, October 28, and Black Tuesday, October 29.
Black Thursday became an enduring symbol of the collapse of the speculative boom of the Roaring Twenties. But the crash alone did not cause the Great Depression: the American economy had already begun contracting in August 1929, and banking panics and policy failures subsequently deepened the downturn. The day’s lasting significance lies both in the panic itself and in the limits of the rescue—a temporary restoration of confidence that could not prevent the larger crisis unfolding.
Image: Crowds panic in the Wall Street district of Manhattan due to the heavy trading on the stock market in New York City on Oct. 24, 1929.
