Underfolio

Every trading day › 1981

The stock market on March 20, 1981

March 20, 1981, a Friday. The S&P 500 rose 0.46% to close at 134.08. Of 4,746 US stocks that traded, 2,015 rose and 965 fell.

The S&P 500+0.46%closed at 134.08
How big a move#13,088of 24,799 trading days since 1928
$100 in the index since$5,746price only, to September 24, 2026
Stocks that rose2,015of 4,746; 965 fell
Biggest companyAT&T Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Pioneer Corp-Texas (PNA)+10.1%
Ashland (ASH)+8.1%
American Homes 4 Rent (AMH)+8.0%

Biggest falls among the 500 largest companies

First Charter Financial (FCF)-5.3%
Phelps Dodge (PD)-3.8%
Manville (JM)-3.7%

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

‹ March 19, 1981 · Every March 20 · March 23, 1981 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.