The stock market on October 21, 1976
October 21, 1976, a Thursday. The S&P 500 fell 0.95% to close at 100.77. Of 4,712 US stocks that traded, 979 rose and 1,398 fell.
The S&P 500-0.95%closed at 100.77
How big a move#6,445of 24,799 trading days since 1928
$100 in the index since$7,645price only, to September 24, 2026
Stocks that rose979of 4,712; 1,398 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Smith International (SII) | +4.4% |
| Stauffer Chemical Co (STF.) | +3.5% |
| Nalco Chemical Co (NLC) | +3.3% |
Biggest falls among the 500 largest companies
| National Semiconductor (NSM) | -10.9% |
| CBS Corporation (CBS) | -7.3% |
| Bicoastal Corp | -6.3% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 20, 1976 · Every October 21 · October 22, 1976 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.