1929 Stock Market Crash

The 1929 stock market crash occurred over several days in late October 1929, with Black Thursday (October 24) and Black Tuesday (October 29) marking the most dramatic single-day declines. The Dow Jones Industrial Average lost approximately 25% of its value during these two trading sessions, erasing billions in market capitalization and signaling the end of the 1920s bull market.

Multiple factors contributed to the crash: widespread margin buying that created unsustainable leverage, overvaluation of stocks relative to corporate earnings, and the unwinding of speculative positions as confidence eroded. The Federal Reserve’s monetary tightening in 1928-1929, intended to cool speculation, reduced liquidity and amplified selling pressure.

The crash triggered a cascade of bank failures as institutions holding depreciated securities faced deposit withdrawals. This banking contraction reduced credit availability and contributed to the broader economic depression that followed, though economists debate whether the crash caused the Depression or merely reflected underlying economic weaknesses.

Conspiracy theories emerged attributing the crash to deliberate manipulation by banking interests, particularly focusing on the Rockefeller and Rothschild families allegedly coordinating massive short selling. However, documented evidence shows that major financial figures like John D. Rockefeller Jr. actually attempted to stabilize markets by purchasing stocks during the decline.

The crash led to significant financial regulation, including the Securities Act of 1933 and establishment of the Securities and Exchange Commission, aimed at preventing similar speculative excesses and market manipulation.