The stock market on September 10, 1971
September 10, 1971, a Friday. The S&P 500 fell 0.38% to close at 100.42. Of 2,347 US stocks that traded, 716 rose and 1,151 fell.
The S&P 500-0.38%closed at 100.42
How big a move#14,856of 24,799 trading days since 1928
$100 in the index since$7,672price only, to September 24, 2026
Stocks that rose716of 2,347; 1,151 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Mca Inc. (MCA) | +13.5% |
| Quaker State (KSF) | +6.3% |
| Hewlett-Packard (HWP) | +5.8% |
Biggest falls among the 500 largest companies
| Kaiser Industries Corp (KI) | -4.3% |
| NL Industries, Inc. (NL) | -3.9% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 9, 1971 · Every September 10 · September 13, 1971 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.