The stock market on April 20, 1978
April 20, 1978, a Thursday. The S&P 500 rose 0.72% to close at 94.54. Of 4,580 US stocks that traded, 1,753 rose and 813 fell.
The S&P 500+0.72%closed at 94.54
How big a move#8,951of 24,799 trading days since 1928
$100 in the index since$8,149price only, to September 24, 2026
Stocks that rose1,753of 4,580; 813 fell
Biggest companyAT&T Corporationby market value that day
Biggest rises among the 500 largest companies
| Koppers (KOP) | +6.3% |
| PepsiAmericas (WH) | +5.3% |
| Smith International (SII) | +5.1% |
Biggest falls among the 500 largest companies
| Nalco Chemical Co (NLC) | -5.3% |
| Schlitz (jos.) Brewing Co (SLZ.) | -3.3% |
| Canadian Superior Oil (CDS) | -3.0% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ April 19, 1978 · Every April 20 · April 21, 1978 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.