The stock market on September 30, 1980
September 30, 1980, a Tuesday. The S&P 500 rose 1.55% to close at 125.46. Of 4,602 US stocks that traded, 2,139 rose and 951 fell.
The S&P 500+1.55%closed at 125.46
How big a move#2,855of 24,799 trading days since 1928
$100 in the index since$6,141price only, to September 24, 2026
Stocks that rose2,139of 4,602; 951 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for7stocks
Biggest rises among the 500 largest companies
| Harbinger Group Inc (HRG) | +10.0% |
| Salomon | +9.6% |
| Computervision Corp -old (CVN) | +8.3% |
Biggest falls among the 500 largest companies
| Signal Companies (SGN) | -5.1% |
| Macy (R H) & Co | -4.0% |
| Mcdermott Intl Inc (MDRIQ) | -3.1% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 29, 1980 · Every September 30 · October 1, 1980 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.