The 19 October 1987 crash in Hong Kong’s stock exchange was also known as Black Monday.
Hong Kong experienced one of the most severe falls in the worldwide 1987 market shock. Trading on the Hong Kong Futures Exchange was suspended for several days after the Hang Seng Index plunged, and the exchange later reopened amid continued anxiety.
The crash was global. The Dow Jones Industrial Average fell 22.6% on 19 October, while markets in Europe, Australia, and Canada also declined sharply. Selling pressure was intensified by portfolio insurance and other computerized trading strategies.
Black Monday does not refer only to the United States. The name describes the international market collapse that day, although the American Dow’s percentage fall is the statistic most often cited in general histories.