Underfolio

Every trading day › 1981

The stock market on February 23, 1981

February 23, 1981, a Monday. The S&P 500 rose 0.61% to close at 127.35. Of 4,723 US stocks that traded, 1,593 rose and 1,351 fell.

The S&P 500+0.61%closed at 127.35
How big a move#10,623of 24,799 trading days since 1928
$100 in the index since$6,050price only, to September 24, 2026
Stocks that rose1,593of 4,723; 1,351 fell
Biggest companyAT&T Corporationby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

Twentieth Century-Fox Film+15.5%
Milacron (MZIAQ)+8.5%
Delhi Intl Oil Corp (DLH)+7.0%

Biggest falls among the 500 largest companies

Gearhart Industries Inc (GOI)-5.9%
Amax Inc. (AMX)-4.4%
Peoples Energy Corporation (PGL)-3.1%

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

‹ February 20, 1981 · Every February 23 · February 24, 1981 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.