The stock market on May 23, 1985
May 23, 1985, a Thursday. The S&P 500 fell 0.51% to close at 187.60. Of 5,713 US stocks that traded, 1,488 rose and 1,930 fell.
The S&P 500-0.51%closed at 187.60
How big a move#12,303of 24,799 trading days since 1928
$100 in the index since$4,107price only, to September 24, 2026
Stocks that rose1,488of 5,713; 1,930 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Eckerd (ECK) | +6.7% |
| Pharmacia (PNU) | +6.6% |
| Pioneer Corp-Texas (PNA) | +4.2% |
Biggest falls among the 500 largest companies
| Wang Labs Inc (WANG) | -6.1% |
| DSC Communications (DIGI) | -5.4% |
| Tandem Computers Inc (TDM.) | -5.0% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ May 22, 1985 · Every May 23 · May 24, 1985 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.