Underfolio

Every trading day › 1968

The stock market on October 18, 1968

October 18, 1968, a Friday. The S&P 500 rose 0.78% to close at 104.82. Of 2,046 US stocks that traded, 1,015 rose and 750 fell.

The S&P 500+0.78%closed at 104.82
How big a move#8,258of 24,799 trading days since 1928
$100 in the index since$7,350price only, to September 24, 2026
Stocks that rose1,015of 2,046; 750 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Ina Corp (INA)+7.5%
Worldcorp Inc (WDCP)+7.2%
Husky Oil Ltd (HYO)+6.7%

Biggest falls among the 500 largest companies

Dillingham Corp (DHM)-5.0%
R.R. Donnelley & Sons (DNY)-4.2%
Allis-Chalmers Energy Inc (ALY)-3.3%

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

‹ October 17, 1968 · Every October 18 · October 21, 1968 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.