The stock market on August 9, 1978
August 9, 1978, a Wednesday. The S&P 500 rose 0.47% to close at 104.50. Of 4,543 US stocks that traded, 1,791 rose and 931 fell.
The S&P 500+0.47%closed at 104.50
How big a move#12,945of 24,799 trading days since 1928
$100 in the index since$7,372price only, to September 24, 2026
Stocks that rose1,791of 4,543; 931 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks
Biggest rises among the 500 largest companies
| Mead (MEA) | +19.0% |
| W.W. Grainger (GWW) | +6.5% |
| Con-way (CNF) | +6.3% |
Biggest falls among the 500 largest companies
| Digital Equipment (DEC) | -4.9% |
| Flagstar Corp | -4.8% |
| Utah Power & Light (UTP) | -4.5% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ August 8, 1978 · Every August 9 · August 10, 1978 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.