684 points (7.1%)
Following the worst terrorist attack in U.S. history on Sept. 11, the market plummeted on its first day of trading, the American Stock Exchange and New York Stock Exchange having been shut down for almost a week. The value of two present-day titans of banking and investments, JPMorgan Chase and Citigroup, dropped 6% by midday.
Top 10 Dow Jones Drops
In the wake of the U.S. House of Representatives' 228-205 rejection of the Bush administration's $700 billion bailout bill, the Dow Jones industrial average plunged 778 points. It was the largest one-day drop in history, though in terms of market percentage lost, it failed to approach the calamitous crashes of 1987, 1929, and 1914.
Alex Altman & Frances Romero