The stock market on August 20, 1975
August 20, 1975, a Wednesday. The S&P 500 fell 2.04% to close at 83.22. Of 4,633 US stocks that traded, 409 rose and 2,338 fell.
The S&P 500-2.04%closed at 83.22
How big a move#1,617of 24,799 trading days since 1928
$100 in the index since$9,258price only, to September 24, 2026
Stocks that rose409of 4,633; 2,338 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Texas Oil & Gas (TXO) | +6.3% |
| Honeywell (HON.Z) | +3.4% |
Biggest falls among the 500 largest companies
| Mallinckrodt Inc -old (MALL.) | -8.6% |
| Hobart (HOB) | -8.3% |
| Geico Corp (GEC) | -7.5% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ August 19, 1975 · Every August 20 · August 21, 1975 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.