The stock market on September 4, 1986
September 4, 1986, a Thursday. The S&P 500 rose 1.50% to close at 253.83. Of 5,940 US stocks that traded, 2,462 rose and 1,412 fell.
The S&P 500+1.50%closed at 253.83
How big a move#3,077of 24,799 trading days since 1928
$100 in the index since$3,035price only, to September 24, 2026
Stocks that rose2,462of 5,940; 1,412 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Allied Stores | +22.1% |
| Consolidated Natural Gas | +8.3% |
| Texas Eastern Corp | +7.9% |
Biggest falls among the 500 largest companies
| BankBoston (BKB) | -2.6% |
| Scana (SCG) | -2.3% |
| Mesa Inc (MXP.) | -2.2% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 3, 1986 · Every September 4 · September 5, 1986 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.