Black Monday Set the Largest Single-Day Drop on Record
Historical data shows the stock market is full of unpredictable volatility, and even experienced investors can face huge challenges. On October 19, 1987, the Dow Jones Industrial Average plunged 22.61%, setting the record for the largest single-day drop in history. Despite the staggering decline, the index rebounded about 12% during the rest of that week and fully recovered its losses in just over a year, returning to its pre-crash level and showing the market's ability to repair itself after extreme selling pressure.
Flash Crash Wiped Out Market Value in an Instant
The Flash Crash occurred on May 6, 2010, when S&P 500 futures fell 5% in less than five minutes and the Dow Jones Industrial Average also plunged 9%. The event wiped out about one trillion U.S. dollars in market value within minutes, but the whole episode lasted less than an hour and the market quickly stabilized. The S&P 500 closed down 3.24% that day and the Dow closed down 3.2%, underscoring how unpredictable sharp short-term swings can be.
Asian Financial Crisis Hit Regional Markets
Between 1997 and 1998, the Asian Financial Crisis erupted, triggered when Thailand exhausted its foreign exchange reserves and could no longer defend the baht, causing the baht to plunge 56% against the U.S. dollar. The crisis sent Thai stocks down 75% and South Korean stocks down about 60%, with severe turmoil across regional markets. Despite the sharp pullback in Asian markets, the U.S. S&P 500 still gained 26.7% in 1998, reflecting divergent moves across markets.
Financial Crisis and Pandemic Slammed U.S. Stocks
The 2008 global financial crisis bankrupted a number of well-known companies, including Lehman Brothers, General Motors, Stellantis North America and Washington Mutual, and there were even reports that the Bank of England was only hours away from collapse. The S&P 500 fell 38.49% for the full year and did not recover and surpass its early-2008 level until January 2013. The outbreak of COVID-19 in early 2020 triggered turmoil in global stock markets, with the S&P 500 falling 33.9% in just one month from February 19 to March 23. Compared with other market panic episodes, its cause was clear and traceable, showing how quickly the market reacts to sudden events. Investing involves gains and losses, and historical experience reminds investors to focus on risk management.