The stock market on September 17, 1971
September 17, 1971, a Friday. The S&P 500 rose 0.30% to close at 99.96. Of 2,354 US stocks that traded, 1,025 rose and 815 fell.
The S&P 500+0.30%closed at 99.96
How big a move#16,519of 24,799 trading days since 1928
$100 in the index since$7,707price only, to September 24, 2026
Stocks that rose1,025of 2,354; 815 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Winnebago Industries, Inc. (WGO) | +6.9% |
| R.R. Donnelley & Sons (DNY) | +4.7% |
| Del Monte (DEL) | +4.3% |
Biggest falls among the 500 largest companies
| Levi Strauss (LEVI) | -6.5% |
| Mattel (MAT) | -5.0% |
| Outboard Marine | -4.7% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 16, 1971 · Every September 17 · September 20, 1971 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.