The stock market on August 12, 1986
August 12, 1986, a Tuesday. The S&P 500 rose 1.11% to close at 243.34. Of 5,906 US stocks that traded, 2,386 rose and 1,411 fell.
The S&P 500+1.11%closed at 243.34
How big a move#5,189of 24,799 trading days since 1928
$100 in the index since$3,166price only, to September 24, 2026
Stocks that rose2,386of 5,906; 1,411 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Big Three Industries | +18.6% |
| Dreyfus Corp (DRY) | +10.5% |
| Transco Energy (E) | +10.2% |
Biggest falls among the 500 largest companies
| Campbell Red Lake Mines (CRK) | -5.1% |
| Newmont Gold Co (NGC) | -4.9% |
| Tele-Comm Tci Group -ser A (TCOMA) | -3.2% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ August 11, 1986 · Every August 12 · August 13, 1986 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.