During the 1987 global crash, which Hong Kong index fell about 46% from August to October?

The Hang Seng Index fell about 46% from August to October during the 1987 global stock-market crash. Hong Kong was among the markets hit hardest as the worldwide sell-off spread across exchanges.

The Hang Seng had reached a record high of 3,949.17 on August 4, 1987. By December 1987, it had fallen to 1,894.94, a decline of more than half from that peak. The market was also closed for several days in October after the crash disrupted trading conditions.

The 1987 collapse is often remembered through the U.S. market’s October 19 plunge, when the Dow Jones Industrial Average fell 22.6%. However, the event was global rather than exclusively American. Hong Kong, Australia, the United Kingdom, and many other markets recorded severe losses. The Hang Seng Index is distinct from Japan’s Nikkei 225 and Britain’s FTSE 100, which were also affected.