Underfolio

Every trading day › 1978

The stock market on August 18, 1978

August 18, 1978, a Friday. The S&P 500 fell 0.33% to close at 104.73. Of 4,538 US stocks that traded, 1,407 rose and 1,249 fell.

The S&P 500-0.33%closed at 104.73
How big a move#15,757of 24,799 trading days since 1928
$100 in the index since$7,356price only, to September 24, 2026
Stocks that rose1,407of 4,538; 1,249 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Dole Food (DOLE)+4.0%
Texas Oil & Gas (TXO)+3.7%
Houston Oil & Minerals (HOI)+3.7%

Biggest falls among the 500 largest companies

American Airlines Group (AMR)-6.4%
Whirlpool (WHR)-4.1%
Hilton Worldwide Holdings (HLT)-3.8%

Stock moves count dividends; the index is price only. Market values after 2024 are estimates.

‹ August 17, 1978 · Every August 18 · August 21, 1978 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.