The stock market on July 21, 1978
July 21, 1978, a Friday. The S&P 500 fell 0.29% to close at 97.75. Of 4,534 US stocks that traded, 1,070 rose and 1,382 fell.
The S&P 500-0.29%closed at 97.75
How big a move#16,871of 24,799 trading days since 1928
$100 in the index since$7,881price only, to September 24, 2026
Stocks that rose1,070of 4,534; 1,382 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| Columbus Southern Power Corp | +9.7% |
| Houston Oil & Minerals (HOI) | +7.5% |
| Dome Mines (DM) | +6.5% |
Biggest falls among the 500 largest companies
| Texas Oil & Gas (TXO) | -6.6% |
| Tektronix (TEK) | -5.3% |
| Bristol-Myers Squibb (BMY) | -4.0% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ July 20, 1978 · Every July 21 · July 24, 1978 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.