Which 1989 crash saw the Dow Jones Industrial Average drop 190.58 points in a single day?

The 1989 crash in which the Dow Jones Industrial Average dropped 190.58 points was the October 13, 1989 crash.

Known as the Friday the 13th mini-crash, the decline followed the collapse of a proposed leveraged buyout of United Airlines' parent company. Investors worried about the ability to finance large acquisitions, and selling accelerated across the market. The Dow fell 6.91%, which was a substantial one-day move even though it was smaller than the percentage loss of 1987's Black Monday.

The event is sometimes confused with the 1987 crash because both involved abrupt selling and concerns about financial-market structure. It is also distinct from the October 1989 bond-market turmoil more broadly. The crash did not develop into a prolonged bear market like the 1929 or 2008 episodes, but it became an important example of how leveraged finance and takeover expectations could affect stock prices.