The stock market on October 1, 1986
October 1, 1986, a Wednesday. The S&P 500 rose 0.99% to close at 233.60. Of 5,962 US stocks that traded, 2,302 rose and 1,499 fell.
The S&P 500+0.99%closed at 233.60
How big a move#6,169of 24,799 trading days since 1928
$100 in the index since$3,298price only, to September 24, 2026
Stocks that rose2,302of 5,962; 1,499 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Bear Stearns (BSC) | +8.5% |
| Dreyfus Corp (DRY) | +6.6% |
| H.F. Ahmanson (AHM) | +5.8% |
Biggest falls among the 500 largest companies
| Niagara Mohawk Power (NMK) | -14.1% |
| Home Shopping Network | -8.0% |
| Intergraph Corp (INGR.) | -4.5% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 30, 1986 · Every October 1 · October 2, 1986 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.