The stock market on October 23, 1987
October 23, 1987, a Friday. The S&P 500 fell 0.01% to close at 248.22. Of 6,376 US stocks that traded, 1,349 rose and 3,320 fell.
The S&P 500-0.01%closed at 248.22
How big a move#24,263of 24,799 trading days since 1928
$100 in the index since$3,104price only, to September 24, 2026
Stocks that rose1,349of 6,376; 3,320 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for4stocks
Biggest rises among the 500 largest companies
| Williams (WMB) | +12.0% |
| United Cable Television (UCT) | +8.7% |
| Dun & Bradstreet Holdngs Inc (DNB) | +7.6% |
Biggest falls among the 500 largest companies
| Sun Microsystems (SUNW) | -12.7% |
| Pirme Motor Inns (PDQ) | -11.9% |
| Salomon | -11.6% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 22, 1987 · Every October 23 · October 26, 1987 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.