The stock market on September 30, 1975
September 30, 1975, a Tuesday. The S&P 500 fell 1.36% to close at 83.87. Of 4,635 US stocks that traded, 502 rose and 1,990 fell.
The S&P 500-1.36%closed at 83.87
How big a move#3,704of 24,799 trading days since 1928
$100 in the index since$9,186price only, to September 24, 2026
Stocks that rose502of 4,635; 1,990 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Champion Spark Plug (CHM) | +4.0% |
| Dillon Cos (DLL) | +3.9% |
| Southwestern Public Svc Co | +2.5% |
Biggest falls among the 500 largest companies
| Continental Bank Corp (CBK) | -10.0% |
| American Broadcasting (ABC) | -8.8% |
| Nch Corp (NCH) | -8.4% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 29, 1975 · Every September 30 · October 1, 1975 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.