Underfolio

Every trading day › 1986

The stock market on February 12, 1986

February 12, 1986, a Wednesday. The S&P 500 rose 0.02% to close at 215.97. Of 5,711 US stocks that traded, 2,005 rose and 1,580 fell.

The S&P 500+0.02%closed at 215.97
How big a move#24,009of 24,799 trading days since 1928
$100 in the index since$3,567price only, to September 24, 2026
Stocks that rose2,005of 5,711; 1,580 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

American Medical Int'l (AMI)+8.0%
Ceridian Corp (CEN)+7.1%
Deere (DE)+5.5%

Biggest falls among the 500 largest companies

Pan Am Corp-6.9%
Ambase Corp (ABCP)-5.2%
Brunswick (BC)-4.2%

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

‹ February 11, 1986 · Every February 12 · February 13, 1986 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.