The rise of computerized systems allowed Wall Street traders to execute rapid, large stock orders. On Black Monday, when the market dipped, these systems started dumping stocks at a rapid pace.

The stock market crash of October 1929 signaled the end of the "Roaring Twenties" and the beginning of the Great Depression.

Market crashes typically happen without warning, often on the heels of a long bull market run during which stock prices steadily rise ... crash on Oct. 28-29. On Black Monday, the Dow tumbled ...

Experts say the U.S. could be on the brink of a devastating market collapse like the 1987 crash, after President Donald Trump's tariff hikes.

Wall Street is bracing for a potential repeat of 1987's brutal Black Monday today — and ... The S&P 500, Nasdaq, and Dow — the three main U.S. stock market indices — are on course to ...