Which date marked the 1987 Black Monday stock-market crash?
Answer
19 October 1987
The 1987 Black Monday stock-market crash occurred on 19 October 1987.
On that day, the Dow Jones Industrial Average fell 508 points, or 22.6 percent, its largest one-day percentage decline. Markets in other countries also dropped sharply, making the event a global crash rather than an isolated U.S. disturbance.
The fall followed a period of rising share prices, concerns about interest rates and trade deficits, and growing use of computerized portfolio insurance. Those systems could generate more selling as prices declined, although historians and economists continue to debate how much they amplified the fall.
Black Monday is often confused with the 1929 crash dates, but it happened nearly six decades later. The crash also helped prompt changes to market safeguards, including circuit breakers designed to pause trading during extreme declines.