The 19 October 1987 crash in Hong Kong was also known as Black Monday.
Hong Kong was among the first major markets hit during the global 1987 sell-off. The Hang Seng Index fell sharply, and trading on the Hong Kong Futures Exchange was suspended for several days amid severe market disruption. When markets opened in other regions, the panic continued to spread westward.
The same nickname is used for the crash date in many countries, including the United States, Britain, Australia, and Hong Kong. That shared name can confuse readers because the local percentage losses and trading hours differed from one market to another.
The global episode was connected through international capital flows and investor sentiment. Concerns about valuations, interest rates, currency relationships, and computerized selling all contributed to the environment. Unlike the 1929 crash, however, Black Monday did not lead to a comparable worldwide depression, although it prompted lasting changes in market regulation.