Underfolio

Every trading day › 1981

The stock market on May 13, 1981

May 13, 1981, a Wednesday. The S&P 500 fell 0.13% to close at 130.55. Of 4,827 US stocks that traded, 1,654 rose and 1,264 fell.

The S&P 500-0.13%closed at 130.55
How big a move#20,977of 24,799 trading days since 1928
$100 in the index since$5,901price only, to September 24, 2026
Stocks that rose1,654of 4,827; 1,264 fell
Biggest companyAT&T Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Coastal+16.2%
Hudson's Bay Oil & Gas Co (HBO)+14.3%
Stanley Black & Decker (SWK)+8.1%

Biggest falls among the 500 largest companies

Phoenix Resource Cos (PHN)-6.0%
Navistar International (NAV)-5.3%
Stauffer Chemical Co (STF.)-4.9%

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

‹ May 12, 1981 · Every May 13 · May 14, 1981 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.