Underfolio

Every trading day › 1985

The stock market on September 19, 1985

September 19, 1985, a Thursday. The S&P 500 rose 0.92% to close at 183.39. Of 5,711 US stocks that traded, 2,372 rose and 1,156 fell.

The S&P 500+0.92%closed at 183.39
How big a move#6,716of 24,799 trading days since 1928
$100 in the index since$4,201price only, to September 24, 2026
Stocks that rose2,372of 5,711; 1,156 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

GPU Inc (General Public Utilities) (GPU)+8.7%
Hutton (E.F.) Group (EFH)+7.0%
Cray Research (CYR)+6.5%

Biggest falls among the 500 largest companies

General Foods Corp-4.5%
Richardson-Vicks Inc (RVI)-4.1%
ConAgra Foods (CAG)-3.7%

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

‹ September 18, 1985 · Every September 19 · September 20, 1985 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.