The stock market on July 31, 1979
July 31, 1979, a Tuesday. The S&P 500 rose 0.64% to close at 103.81. Of 4,512 US stocks that traded, 1,620 rose and 847 fell.
The S&P 500+0.64%closed at 103.81
How big a move#10,148of 24,799 trading days since 1928
$100 in the index since$7,421price only, to September 24, 2026
Stocks that rose1,620of 4,512; 847 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| Mgic Investment Corp (MGI) | +14.3% |
| Caesars New Jersey Inc (CJN) | +5.4% |
Biggest falls among the 500 largest companies
| Dome Petroleum Ltd (DMP) | -5.2% |
| Spelling Entertnmt Grp Inc (SP) | -5.2% |
| Dome Mines (DM) | -4.4% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ July 30, 1979 · Every July 31 · August 1, 1979 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.