The stock market on August 20, 1971
August 20, 1971, a Friday. The S&P 500 rose 0.17% to close at 98.33. Of 2,339 US stocks that traded, 941 rose and 923 fell.
The S&P 500+0.17%closed at 98.33
How big a move#19,781of 24,799 trading days since 1928
$100 in the index since$7,835price only, to September 24, 2026
Stocks that rose941of 2,339; 923 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Cordant Technologies Inc (CDD) | +17.7% |
| Tektronix (TEK) | +5.0% |
| Dresser Industries Inc (DI.) | +4.1% |
Biggest falls among the 500 largest companies
| Genesco Inc. (GCO) | -7.8% |
| Freeport-McMoran (FTX) | -5.7% |
| Fedders Corp (FJCC) | -4.7% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ August 19, 1971 · Every August 20 · August 23, 1971 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.