The stock market on September 18, 1989
September 18, 1989, a Monday. The S&P 500 rose 0.48% to close at 346.73. Of 5,892 US stocks that traded, 1,668 rose and 1,870 fell.
The S&P 500+0.48%closed at 346.73
How big a move#12,734of 24,799 trading days since 1928
$100 in the index since$2,222price only, to September 24, 2026
Stocks that rose1,668of 5,892; 1,870 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Kerr-McGee (KMG) | +5.2% |
| Interpublic Group (IPG) | +4.7% |
| Time Warner (TWX) | +4.2% |
Biggest falls among the 500 largest companies
| U.S. Bancorp (USB) | -5.2% |
| Tandem Computers Inc (TDM.) | -4.3% |
| CoreStates Financial Corp. (CFL) | -4.3% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 15, 1989 · Every September 18 · September 19, 1989 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.