The stock market on September 12, 1977
September 12, 1977, a Monday. The S&P 500 fell 0.35% to close at 96.03. Of 4,632 US stocks that traded, 914 rose and 1,467 fell.
The S&P 500-0.35%closed at 96.03
How big a move#15,346of 24,799 trading days since 1928
$100 in the index since$8,023price only, to September 24, 2026
Stocks that rose914of 4,632; 1,467 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Kellogg (K) | +3.9% |
| Armstrong Holdings (ACK) | +2.8% |
| Dome Petroleum Ltd (DMP) | +2.7% |
Biggest falls among the 500 largest companies
| R.R. Donnelley & Sons (DNY) | -4.1% |
| Asarco Inc (AR) | -3.9% |
| Warner Communications (WCI) | -3.5% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 9, 1977 · Every September 12 · September 13, 1977 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.