Dow jones stock chart
Black Monday (1987) - Wikipedia Black Monday on October 19, 1987 is the name commonly attached to a sudden, severe, and largely unexpected stock market crash that struck the global financial market system. In the United States, the Dow Jones Industrial Average (DJIA) fell exactly 508 points (22.6%), accompanied by crashes in the futures and options markets. This was the largest one-day percentage drop in Dow Jones history.