During the 2010 Flash Crash, approximately how many Dow points disappeared within minutes?

During the 2010 Flash Crash, nearly 1,000 Dow points disappeared within minutes.

On May 6, 2010, U.S. stock markets experienced a sudden and severe plunge. The Dow Jones Industrial Average fell about 1,000 points, approximately 9%, in a matter of minutes before recovering much of the loss. Some individual securities briefly traded at extremely low prices.

Investigations found that automated trading and a large sell order contributed to the extraordinary volatility. High-frequency trading firms and other algorithms reacted rapidly to changing prices, creating a feedback loop in which selling intensified across markets.

The event exposed weaknesses in market structure, including fragmented trading venues and systems that could react faster than human traders. U.S. regulators later introduced safeguards such as single-stock trading pauses and improved circuit-breaker mechanisms. The Flash Crash was not a conventional recession-driven collapse; it was a rapid market-structure failure amplified by automated trading.