Underfolio

Every trading day › 1981

The stock market on September 4, 1981

September 4, 1981, a Friday. The S&P 500 fell 0.97% to close at 120.07. Of 4,988 US stocks that traded, 764 rose and 2,539 fell.

The S&P 500-0.97%closed at 120.07
How big a move#6,338of 24,799 trading days since 1928
$100 in the index since$6,416price only, to September 24, 2026
Stocks that rose764of 4,988; 2,539 fell
Biggest companyAT&T Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

Aquitaine Co Canada Ltd (AQC)+14.5%
Scientific-Atlanta (SFA)+5.4%
Husky Oil Ltd (HYO)+3.8%

Biggest falls among the 500 largest companies

NextEra Energy (FPL)-8.2%
Tandem Computers Inc (TDM.)-6.4%
Gould Inc (GLD)-6.3%

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

‹ September 3, 1981 · Every September 4 · September 8, 1981 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.