The stock market on September 23, 1971
September 23, 1971, a Thursday. The S&P 500 fell 0.09% to close at 98.38. Of 2,355 US stocks that traded, 725 rose and 1,105 fell.
The S&P 500-0.09%closed at 98.38
How big a move#22,076of 24,799 trading days since 1928
$100 in the index since$7,831price only, to September 24, 2026
Stocks that rose725of 2,355; 1,105 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Arlen Corp (ARRD) | +6.1% |
| Cities Service Co | +3.9% |
| Kaiser Industries Corp (KI) | +3.7% |
Biggest falls among the 500 largest companies
| International Paper (IP) | -4.8% |
| Manville (JM) | -4.6% |
| Continental Group (CCC) | -4.2% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 22, 1971 · Every September 23 · September 24, 1971 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.