What date is commonly called Black Monday in the 1987 global stock-market crash?
Answer
October 19, 1987
The date commonly called Black Monday in the 1987 global stock-market crash was October 19, 1987.
On that Monday, stock markets around the world plunged. The Dow Jones Industrial Average lost 508 points, or 22.6%, its largest one-day percentage decline. Markets in Hong Kong, Australia, the United Kingdom, and other financial centers also suffered sharp falls.
The crash followed concerns about trade deficits, currency tensions, interest rates, and slowing economic growth. Program trading and portfolio-insurance strategies may have intensified the selling, although no single cause fully explains the event.
Black Monday is sometimes confused with other market Mondays, including October 28, 1929. The 1987 date is specifically October 19, and the crash was global rather than limited to the United States.