The stock market on March 20, 1978
March 20, 1978, a Monday. The S&P 500 rose 0.69% to close at 90.82. Of 4,577 US stocks that traded, 1,631 rose and 839 fell.
The S&P 500+0.69%closed at 90.82
How big a move#9,451of 24,799 trading days since 1928
$100 in the index since$8,483price only, to September 24, 2026
Stocks that rose1,631of 4,577; 839 fell
Biggest companyAT&T Corporationby market value that day
Biggest rises among the 500 largest companies
| Square "d" (SQD) | +5.0% |
| RadioShack (TAN) | +4.7% |
| Anheuser-Busch (BUD) | +4.6% |
Biggest falls among the 500 largest companies
| Kennecott (KN) | -5.6% |
| Hughes Tool Co (HT.) | -5.6% |
| Dome Mines (DM) | -3.4% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ March 17, 1978 · Every March 20 · March 21, 1978 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.