The stock market on October 20, 1975
October 20, 1975, a Monday. The S&P 500 rose 1.08% to close at 89.82. Of 4,638 US stocks that traded, 1,337 rose and 976 fell.
The S&P 500+1.08%closed at 89.82
How big a move#5,389of 24,799 trading days since 1928
$100 in the index since$8,577price only, to September 24, 2026
Stocks that rose1,337of 4,638; 976 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Mallinckrodt Inc -old (MALL.) | +9.3% |
| RadioShack (TAN) | +8.7% |
| OfficeMax (BCC) | +8.2% |
Biggest falls among the 500 largest companies
| CenterPoint Energy (REI) | -5.6% |
| Ocean Drilling & Exploration (ODR) | -5.2% |
| Otis Elevator Co (OT.) | -4.3% |
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.