The stock market on October 15, 1980
October 15, 1980, a Wednesday. The S&P 500 rose 1.27% to close at 133.70. Of 4,616 US stocks that traded, 1,703 rose and 1,268 fell.
The S&P 500+1.27%closed at 133.70
How big a move#4,139of 24,799 trading days since 1928
$100 in the index since$5,762price only, to September 24, 2026
Stocks that rose1,703of 4,616; 1,268 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| BP p.l.c. (BP) | +8.7% |
| CBS Corporation (CBS) | +8.5% |
| Dorchester Gas Corp (DGS) | +8.2% |
Biggest falls among the 500 largest companies
| Ethyl (NEU) | -4.8% |
| Genentech Inc (DNA) | -4.0% |
| Auto Data Proc (AUD) | -3.8% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 14, 1980 · Every October 15 · October 16, 1980 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.