Underfolio

Every trading day › 1989

The stock market on January 23, 1989

January 23, 1989, a Monday. The S&P 500 fell 0.74% to close at 284.50. Of 6,065 US stocks that traded, 1,491 rose and 2,077 fell.

The S&P 500-0.74%closed at 284.50
How big a move#8,728of 24,799 trading days since 1928
$100 in the index since$2,708price only, to September 24, 2026
Stocks that rose1,491of 6,065; 2,077 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Genentech Inc (DNA)+4.7%
Maytag (MYG)+3.8%
Kemper Corp (KEM)+3.1%

Biggest falls among the 500 largest companies

CR Bard (BCR)-6.8%
Cons Papers (CDP)-4.9%
Cellular Commun Inc -cl A (COMMA)-4.7%

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

‹ January 20, 1989 · Every January 23 · January 24, 1989 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.