The stock market on October 21, 1986
October 21, 1986, a Tuesday. The S&P 500 fell 0.04% to close at 235.88. Of 5,990 US stocks that traded, 1,704 rose and 1,905 fell.
The S&P 500-0.04%closed at 235.88
How big a move#23,645of 24,799 trading days since 1928
$100 in the index since$3,266price only, to September 24, 2026
Stocks that rose1,704of 5,990; 1,905 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks
Biggest rises among the 500 largest companies
| Goodyear Tire & Rubber (GT) | +4.6% |
| Rubbermaid Incorporated (RBD) | +4.4% |
| RadioShack (TAN) | +4.3% |
Biggest falls among the 500 largest companies
| Supermarkets Gen Hldg -cl A | -7.2% |
| Hasbro (HAS) | -6.9% |
| Cray Research (CYR) | -6.8% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 20, 1986 · Every October 21 · October 22, 1986 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.