The stock market on September 30, 1986
September 30, 1986, a Tuesday. The S&P 500 rose 0.61% to close at 231.32. Of 5,966 US stocks that traded, 2,256 rose and 1,487 fell.
The S&P 500+0.61%closed at 231.32
How big a move#10,542of 24,799 trading days since 1928
$100 in the index since$3,331price only, to September 24, 2026
Stocks that rose2,256of 5,966; 1,487 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for5stocks
Biggest rises among the 500 largest companies
| H.F. Ahmanson (AHM) | +7.4% |
| Tambrands Inc (TMB) | +6.1% |
| Goodyear Tire & Rubber (GT) | +5.7% |
Biggest falls among the 500 largest companies
| Continental Telecom (CTC) | -5.2% |
| Home Shopping Network | -4.3% |
| Air Products & Chem. (APD) | -3.3% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 29, 1986 · Every September 30 · October 1, 1986 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.