The stock market on May 17, 1985
May 17, 1985, a Friday. The S&P 500 rose 0.95% to close at 187.42. Of 5,713 US stocks that traded, 2,165 rose and 1,227 fell.
The S&P 500+0.95%closed at 187.42
How big a move#6,502of 24,799 trading days since 1928
$100 in the index since$4,111price only, to September 24, 2026
Stocks that rose2,165of 5,713; 1,227 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for4stocks
Biggest rises among the 500 largest companies
| PerkinElmer, Inc. (PKI) | +7.7% |
| Knight Ridder (KRI) | +6.8% |
| Nordstrom (JWN) | +5.7% |
Biggest falls among the 500 largest companies
| Ceridian Corp (CEN) | -3.5% |
| Ethyl (NEU) | -2.3% |
| Emhart Corp (EMH) | -2.2% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ May 16, 1985 · Every May 17 · May 20, 1985 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.