The stock market on October 9, 1986
October 9, 1986, a Thursday. The S&P 500 fell 0.35% to close at 235.85. Of 5,985 US stocks that traded, 1,850 rose and 1,855 fell.
The S&P 500-0.35%closed at 235.85
How big a move#15,398of 24,799 trading days since 1928
$100 in the index since$3,267price only, to September 24, 2026
Stocks that rose1,850of 5,985; 1,855 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Hutton (E.F.) Group (EFH) | +5.9% |
| Air Products & Chem. (APD) | +5.4% |
| Pennzoil (PZE) | +5.4% |
Biggest falls among the 500 largest companies
| Transitional Hospitals Cp (THY) | -6.9% |
| Newmont Gold Co (NGC) | -6.5% |
| Motorola Solutions (MOT) | -5.3% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
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Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.