What was the name of the 1987 global stock-market crash?

The 1987 global stock-market crash was called Black Monday.

Black Monday refers specifically to October 19, 1987, when markets around the world plunged. The Dow Jones Industrial Average lost 22.6 percent, while other major markets also recorded extraordinary falls. Hong Kong’s market fell first in the international sequence, followed by declines in Europe and North America.

Several explanations were investigated, including overvalued shares, rising interest rates, trade tensions, and computerized program trading. Portfolio insurance strategies could reinforce selling when prices dropped, although historians and economists continue to discuss the relative importance of each cause.

The name is sometimes confused with Black Tuesday, the October 29, 1929, crash day. Black Monday is also used for other market falls, so the year is important when identifying the 1987 event.