The stock market on September 20, 1990
September 20, 1990, a Thursday. The S&P 500 fell 1.62% to close at 311.48. Of 5,806 US stocks that traded, 958 rose and 2,615 fell.
The S&P 500-1.62%closed at 311.48
How big a move#2,628of 24,799 trading days since 1928
$100 in the index since$2,473price only, to September 24, 2026
Stocks that rose958of 5,806; 2,615 fell
Biggest companyExxon Mobilby market value that day
Biggest rises among the 500 largest companies
| Norton Simon (NSI) | +3.3% |
| Textron (TXT) | +2.9% |
| Ual Corp. (UAL) | +2.3% |
Biggest falls among the 500 largest companies
| Allegheny Technologies (ATI) | -11.4% |
| MBIA Inc. (MBI) | -10.5% |
| Conner Peripherals (CNR) | -7.5% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 19, 1990 · Every September 20 · September 21, 1990 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.