Underfolio

Every trading day › 1986

The stock market on October 7, 1986

October 7, 1986, a Tuesday. The S&P 500 fell 0.16% to close at 234.41. Of 5,976 US stocks that traded, 1,617 rose and 2,041 fell.

The S&P 500-0.16%closed at 234.41
How big a move#20,277of 24,799 trading days since 1928
$100 in the index since$3,287price only, to September 24, 2026
Stocks that rose1,617of 5,976; 2,041 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

BankAmerica Corp.+21.4%
Goodyear Tire & Rubber (GT)+8.9%
Amerada Hess (AHC)+6.9%

Biggest falls among the 500 largest companies

Motorola Solutions (MOT)-5.0%
Continental Airlines-4.6%
Intel (INTC)-4.4%

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

‹ October 6, 1986 · Every October 7 · October 8, 1986 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.