Underfolio

Every trading day › 1981

The stock market on May 12, 1981

May 12, 1981, a Tuesday. The S&P 500 rose 0.78% to close at 130.72. Of 4,823 US stocks that traded, 1,472 rose and 1,547 fell.

The S&P 500+0.78%closed at 130.72
How big a move#8,261of 24,799 trading days since 1928
$100 in the index since$5,894price only, to September 24, 2026
Stocks that rose1,472of 4,823; 1,547 fell
Biggest companyAT&T Corporationby market value that day

Biggest rises among the 500 largest companies

MCI Communications (MCIC.)+8.9%
Burlington Industries Equity+8.7%
Homestake Mining (HM)+7.3%

Biggest falls among the 500 largest companies

Nlt Corp (NLT)-4.3%
Wells Fargo (WFC)-3.1%
Kroger (KR)-2.9%

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

‹ May 11, 1981 · Every May 12 · May 13, 1981 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.