The stock market on August 6, 1980
August 6, 1980, a Wednesday. The S&P 500 rose 0.67% to close at 121.55. Of 4,570 US stocks that traded, 1,741 rose and 1,039 fell.
The S&P 500+0.67%closed at 121.55
How big a move#9,690of 24,799 trading days since 1928
$100 in the index since$6,338price only, to September 24, 2026
Stocks that rose1,741of 4,570; 1,039 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| National Semiconductor (NSM) | +7.7% |
| Milacron (MZIAQ) | +6.4% |
Biggest falls among the 500 largest companies
| Sedco (SED) | -4.0% |
| Transco Energy (E) | -3.7% |
| Nlt Corp (NLT) | -3.2% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ August 5, 1980 · Every August 6 · August 7, 1980 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.