Which city hosted the stock exchange at the center of the 1987 Black Monday crash?

New York City hosted the stock exchange at the center of the 1987 Black Monday crash.

The New York Stock Exchange, located on Wall Street in Lower Manhattan, was the main U.S. market associated with the October 19, 1987 collapse. The Dow Jones Industrial Average fell 508 points, or 22.6%, in a single session. The selling was not confined to New York: markets in Hong Kong, London, Australia, and other financial centers also fell sharply.

New York's role reflects the importance of the NYSE rather than the idea that the crash was purely local. Investors around the world held interconnected assets, and financial information traveled rapidly across time zones. Trading systems and portfolio-insurance strategies could also transmit pressure between markets.

Tokyo is a frequent alternative because Japan experienced a major asset-price collapse soon afterward, and London was another important center affected on Black Monday. Neither city hosted the U.S. exchange whose Dow index produced the famous 22.6% one-day loss.