The stock market on September 18, 1986
September 18, 1986, a Thursday. The S&P 500 rose 0.27% to close at 232.31. Of 5,950 US stocks that traded, 1,860 rose and 1,843 fell.
The S&P 500+0.27%closed at 232.31
How big a move#17,178of 24,799 trading days since 1928
$100 in the index since$3,316price only, to September 24, 2026
Stocks that rose1,860of 5,950; 1,843 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks
Biggest rises among the 500 largest companies
| Overnite Transportation (OVT) | +37.1% |
| Price Co (PCLB) | +18.6% |
| Halliburton (HAL) | +8.0% |
Biggest falls among the 500 largest companies
| BankAmerica Corp. | -7.7% |
| Honeywell (HON.Z) | -7.2% |
| Sysco (SYY) | -5.9% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 17, 1986 · Every September 18 · September 19, 1986 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.