The stock market on October 21, 1971
October 21, 1971, a Thursday. The S&P 500 fell 0.05% to close at 95.60. Of 2,368 US stocks that traded, 857 rose and 1,024 fell.
The S&P 500-0.05%closed at 95.60
How big a move#23,285of 24,799 trading days since 1928
$100 in the index since$8,059price only, to September 24, 2026
Stocks that rose857of 2,368; 1,024 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Natomas Co (NOM) | +8.9% |
| Continental Corp. (CIC) | +7.0% |
| Scott Paper (SPP) | +6.3% |
Biggest falls among the 500 largest companies
| Amerada Hess (AHC) | -10.0% |
| Great Atlantic & Pacific Tea (GAPTQ) | -5.9% |
| Sunbeam Corp | -5.2% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 20, 1971 · Every October 21 · October 22, 1971 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.