The stock market on March 20, 1980
March 20, 1980, a Thursday. The S&P 500 fell 1.14% to close at 103.12. Of 4,543 US stocks that traded, 894 rose and 1,599 fell.
The S&P 500-1.14%closed at 103.12
How big a move#4,918of 24,799 trading days since 1928
$100 in the index since$7,471price only, to September 24, 2026
Stocks that rose894of 4,543; 1,599 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Iu International Corp (IU) | +6.3% |
| Sundance Oil (SDN) | +4.3% |
| Dart Industries (D) | +3.8% |
Biggest falls among the 500 largest companies
| Stauffer Chemical Co (STF.) | -7.7% |
| Rohm & Haas (ROH) | -7.4% |
| Alexander & Alexander (AAL) | -7.2% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ March 19, 1980 · Every March 20 · March 21, 1980 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.