Underfolio

Every trading day › 1968

The stock market on October 17, 1968

October 17, 1968, a Thursday. The S&P 500 rose 0.46% to close at 104.01. Of 2,044 US stocks that traded, 1,041 rose and 771 fell.

The S&P 500+0.46%closed at 104.01
How big a move#13,109of 24,799 trading days since 1928
$100 in the index since$7,407price only, to September 24, 2026
Stocks that rose1,041of 2,044; 771 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Allis-Chalmers Energy Inc (ALY)+10.4%
Qantel Corp+8.7%
Macmillan (MLL)+8.7%

Biggest falls among the 500 largest companies

Canadian Superior Oil (CDS)-6.7%
Bendix Corp-5.3%

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

‹ October 15, 1968 · Every October 17 · October 18, 1968 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.