Underfolio

Every trading day › 1981

The stock market on March 18, 1981

March 18, 1981, a Wednesday. The S&P 500 rose 0.22% to close at 134.22. Of 4,742 US stocks that traded, 1,693 rose and 1,297 fell.

The S&P 500+0.22%closed at 134.22
How big a move#18,406of 24,799 trading days since 1928
$100 in the index since$5,740price only, to September 24, 2026
Stocks that rose1,693of 4,742; 1,297 fell
Biggest companyAT&T Corporationby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

PepsiAmericas (WH)+15.5%
Ford Motor (F)+9.2%
USF&G Corporation (United States Fidelity & Guaranty) (FG)+8.2%

Biggest falls among the 500 largest companies

Murphy Oil Corporation (MUR)-7.2%
Pioneer Corp-Texas (PNA)-6.9%
Ocean Drilling & Exploration (ODR)-6.2%

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

‹ March 17, 1981 · Every March 18 · March 19, 1981 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.