The stock market on May 18, 1978
May 18, 1978, a Thursday. The S&P 500 fell 0.98% to close at 98.62. Of 4,575 US stocks that traded, 1,165 rose and 1,509 fell.
The S&P 500-0.98%closed at 98.62
How big a move#6,183of 24,799 trading days since 1928
$100 in the index since$7,812price only, to September 24, 2026
Stocks that rose1,165of 4,575; 1,509 fell
Biggest companyAT&T Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Fannie Mae (FNMA) | +5.4% |
| Phelps Dodge (PD) | +4.4% |
| General American Oil Co Tx (GAO) | +4.0% |
Biggest falls among the 500 largest companies
| Northrop Grumman (NOC) | -6.2% |
| Freeport-McMoran (FTX) | -5.5% |
| Santa Fe International (SAF) | -5.1% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ May 17, 1978 · Every May 18 · May 19, 1978 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.