The stock market on September 9, 1970
September 9, 1970, a Wednesday. The S&P 500 fell 0.30% to close at 82.79. Of 2,268 US stocks that traded, 902 rose and 966 fell.
The S&P 500-0.30%closed at 82.79
How big a move#16,517of 24,799 trading days since 1928
$100 in the index since$9,306price only, to September 24, 2026
Stocks that rose902of 2,268; 966 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Salomon | +7.1% |
| Ampex Corp (APX) | +6.4% |
| S&P Global (MHP) | +6.3% |
Biggest falls among the 500 largest companies
| Natomas Co (NOM) | -9.6% |
| Occidental Petroleum (OXY) | -6.7% |
| City Investing Co (CNV) | -5.4% |
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.