The stock market on August 12, 1980
August 12, 1980, a Tuesday. The S&P 500 fell 0.79% to close at 123.79. Of 4,570 US stocks that traded, 1,152 rose and 1,831 fell.
The S&P 500-0.79%closed at 123.79
How big a move#8,112of 24,799 trading days since 1928
$100 in the index since$6,224price only, to September 24, 2026
Stocks that rose1,152of 4,570; 1,831 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Imperial Corp Of America (ICA.) | +23.1% |
| Tom Brown Inc (TMBR) | +5.5% |
| Gearhart Industries Inc (GOI) | +5.5% |
Biggest falls among the 500 largest companies
| Bally Entertainment (BLY) | -7.8% |
| Chrysler Corp (C) | -6.9% |
| Wang Labs Inc (WANG) | -6.2% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ August 11, 1980 · Every August 12 · August 13, 1980 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.