Underfolio

Every trading day › 1984

The stock market on January 27, 1984

January 27, 1984, a Friday. The S&P 500 fell 0.18% to close at 163.94. Of 5,648 US stocks that traded, 1,252 rose and 2,030 fell.

The S&P 500-0.18%closed at 163.94
How big a move#19,543of 24,799 trading days since 1928
$100 in the index since$4,699price only, to September 24, 2026
Stocks that rose1,252of 5,648; 2,030 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Coastal+9.9%
Houston Pipe Line Co+6.2%
Amax Inc. (AMX)+6.2%

Biggest falls among the 500 largest companies

Apple (AAPL)-5.4%
Data General Corp (DGN.)-4.9%
Tandem Computers Inc (TDM.)-4.8%

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

‹ January 26, 1984 · Every January 27 · January 30, 1984 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.