Underfolio

Every trading day › 1980

The stock market on September 4, 1980

September 4, 1980, a Thursday. The S&P 500 fell 0.56% to close at 125.42. Of 4,583 US stocks that traded, 1,563 rose and 1,436 fell.

The S&P 500-0.56%closed at 125.42
How big a move#11,504of 24,799 trading days since 1928
$100 in the index since$6,143price only, to September 24, 2026
Stocks that rose1,563of 4,583; 1,436 fell
Biggest companyAT&T Corporationby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

Corning (GLW)+4.8%
Campbell Red Lake Mines (CRK)+4.7%
Macy (R H) & Co+4.6%

Biggest falls among the 500 largest companies

Cities Service Co-5.7%
Natomas Co (NOM)-5.3%
Square "d" (SQD)-4.6%

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

‹ September 3, 1980 · Every September 4 · September 5, 1980 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.