The stock market on October 21, 1977
October 21, 1977, a Friday. The S&P 500 fell 0.38% to close at 92.32. Of 4,639 US stocks that traded, 1,081 rose and 1,187 fell.
The S&P 500-0.38%closed at 92.32
How big a move#14,829of 24,799 trading days since 1928
$100 in the index since$8,345price only, to September 24, 2026
Stocks that rose1,081of 4,639; 1,187 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Sambo's Restaurants (QSRI.) | +9.2% |
| Big Three Industries | +5.6% |
| Hudson's Bay Oil & Gas Co (HBO) | +3.9% |
Biggest falls among the 500 largest companies
| Burlington Industries Equity | -5.1% |
| Cummins (CUM) | -4.6% |
| Dow Chemical (DOW) | -4.5% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 20, 1977 · Every October 21 · October 24, 1977 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.