The stock market on September 13, 1971
September 13, 1971, a Monday. The S&P 500 fell 0.35% to close at 100.07. Of 2,349 US stocks that traded, 726 rose and 1,121 fell.
The S&P 500-0.35%closed at 100.07
How big a move#15,441of 24,799 trading days since 1928
$100 in the index since$7,699price only, to September 24, 2026
Stocks that rose726of 2,349; 1,121 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Lone Star Industries (LCE) | +5.5% |
| Scott Paper (SPP) | +5.3% |
| Rhone-Poulenc Rorer (RPR) | +3.4% |
Biggest falls among the 500 largest companies
| Tektronix (TEK) | -6.0% |
| Gk Technologies Inc (GK.) | -4.7% |
| Aetna (AET) | -4.0% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
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Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.