Underfolio

Every trading day › 1981

The stock market on April 23, 1981

April 23, 1981, a Thursday. The S&P 500 fell 0.15% to close at 133.94. Of 4,800 US stocks that traded, 1,733 rose and 1,368 fell.

The S&P 500-0.15%closed at 133.94
How big a move#20,497of 24,799 trading days since 1928
$100 in the index since$5,752price only, to September 24, 2026
Stocks that rose1,733of 4,800; 1,368 fell
Biggest companyAT&T Corporationby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

Nabisco Brands Inc (NB)+6.8%
Storage Technology (STK)+6.0%
Gulf United Corp (GHC)+5.9%

Biggest falls among the 500 largest companies

Tom Brown Inc (TMBR)-9.0%
R & B Falcon Corp (FLC)-8.1%
Phoenix Resource Cos (PHN)-7.4%

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

‹ April 22, 1981 · Every April 23 · April 24, 1981 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.