The stock market on July 21, 1986
July 21, 1986, a Monday. The S&P 500 fell 0.05% to close at 236.24. Of 5,904 US stocks that traded, 1,477 rose and 2,258 fell.
The S&P 500-0.05%closed at 236.24
How big a move#23,307of 24,799 trading days since 1928
$100 in the index since$3,261price only, to September 24, 2026
Stocks that rose1,477of 5,904; 2,258 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Colt Industries (COT) | +40.3% |
| Reebok International (RBK) | +9.0% |
| Kroger (KR) | +6.6% |
Biggest falls among the 500 largest companies
| Sonat Inc. (SNT) | -6.2% |
| Halliburton (HAL) | -5.7% |
| G-I Holdings Inc | -5.2% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ July 18, 1986 · Every July 21 · July 22, 1986 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.