Underfolio

Every trading day › 1986

The stock market on June 9, 1986

June 9, 1986, a Monday. The S&P 500 fell 2.32% to close at 239.96. Of 5,820 US stocks that traded, 939 rose and 3,043 fell.

The S&P 500-2.32%closed at 239.96
How big a move#1,212of 24,799 trading days since 1928
$100 in the index since$3,211price only, to September 24, 2026
Stocks that rose939of 5,820; 3,043 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

Olin (OLN)+5.9%
Eex Corp (EEX)+4.5%
Homestake Mining (HM)+4.4%

Biggest falls among the 500 largest companies

Molex (MOLX)-5.9%
Cetus Corp (CTUS)-5.2%
ITT Industries (IIN)-5.1%

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

‹ June 6, 1986 · Every June 9 · June 10, 1986 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.