Video: 'NBC Nightly News - Black Monday - 19 October 1987'

(Black Monday, October 19, 1987) — The stock market crashed today as the Dow Jones Industrial Average plunged 508 points, or 22.6 percent in value, to close at 1,738.74.

That 22.6 percent decline was the worst since World War I and far greater than the 12.82 percent drop on Oct. 28, 1929, that along with the next day’s 11.7 percent decline that preceded the Great Depression.