Underfolio

Every trading day › 1985

The stock market on August 19, 1985

August 19, 1985, a Monday. The S&P 500 rose 0.15% to close at 186.38. Of 5,716 US stocks that traded, 1,609 rose and 1,771 fell.

The S&P 500+0.15%closed at 186.38
How big a move#20,464of 24,799 trading days since 1928
$100 in the index since$4,134price only, to September 24, 2026
Stocks that rose1,609of 5,716; 1,771 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Ich Corp (ICHP)+5.3%
Cincinnati Financial (CINF)+4.6%
Pepco Holdings (POM)+3.7%

Biggest falls among the 500 largest companies

W.W. Grainger (GWW)-5.4%
Blockbuster (BBI)-4.4%
Providian Corp (PVN)-4.0%

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

‹ August 16, 1985 · Every August 19 · August 20, 1985 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.