On which date did Black Monday occur during the 1987 global stock-market crash?

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Black Monday occurred on October 19, 1987, during the global stock-market crash.

On that Monday, the Dow Jones Industrial Average fell 508 points, or 22.6 percent, its largest one-day percentage decline. Major markets in Europe, Asia, and elsewhere also suffered steep losses, making the event international rather than solely American.

Program trading, portfolio insurance, rising interest rates, trade tensions, and investor fear all contributed to the selling. The exact balance among these causes remains debated, but the decline was amplified by market mechanisms that encouraged rapid selling.

Black Monday is often confused with the 1929 crash dates that also use color-based names. The 1987 event did not produce a decade-long economic depression, and the Dow later recovered its pre-crash level.

Source: Wikipedia · fact-checked Sept. 2026

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