The stock market on October 16, 1986
October 16, 1986, a Thursday. The S&P 500 rose 0.31% to close at 239.53. Of 5,983 US stocks that traded, 1,762 rose and 1,629 fell.
The S&P 500+0.31%closed at 239.53
How big a move#16,408of 24,799 trading days since 1928
$100 in the index since$3,216price only, to September 24, 2026
Stocks that rose1,762of 5,983; 1,629 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| Psi Resources Inc | +25.2% |
| Lomas Financial Corp | +10.0% |
| American Homes 4 Rent (AMH) | +7.1% |
Biggest falls among the 500 largest companies
| Intergraph Corp (INGR.) | -5.5% |
| Hutton (E.F.) Group (EFH) | -4.9% |
| Dow Chemical (DOW) | -4.7% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 15, 1986 · Every October 16 · October 17, 1986 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.