The stock market on May 20, 1986
May 20, 1986, a Tuesday. The S&P 500 rose 1.25% to close at 236.11. Of 5,788 US stocks that traded, 2,098 rose and 1,616 fell.
The S&P 500+1.25%closed at 236.11
How big a move#4,285of 24,799 trading days since 1928
$100 in the index since$3,263price only, to September 24, 2026
Stocks that rose2,098of 5,788; 1,616 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Reebok International (RBK) | +12.5% |
| Giant Food (GFS.A) | +5.4% |
| New York Times (NYT) | +5.1% |
Biggest falls among the 500 largest companies
| Molex (MOLX) | -4.0% |
| Norton Simon (NSI) | -3.3% |
| North American Philips | -3.1% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ May 19, 1986 · Every May 20 · May 21, 1986 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.