The stock market on January 18, 1985
January 18, 1985, a Friday. The S&P 500 rose 0.35% to close at 171.32. Of 5,744 US stocks that traded, 2,095 rose and 1,258 fell.
The S&P 500+0.35%closed at 171.32
How big a move#15,500of 24,799 trading days since 1928
$100 in the index since$4,497price only, to September 24, 2026
Stocks that rose2,095of 5,744; 1,258 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Interfirst Corp (IFC) | +7.0% |
| Fluor (FLR) | +5.3% |
| Harris (HRS) | +4.6% |
Biggest falls among the 500 largest companies
| UST Inc. (UST) | -5.6% |
| Alcoa (AA) | -5.5% |
| Columbia Energy Group | -5.1% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ January 17, 1985 · Every January 18 · January 21, 1985 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.