Underfolio

Every trading day › 1980

The stock market on February 11, 1980

February 11, 1980, a Monday. The S&P 500 fell 0.70% to close at 117.12. Of 4,514 US stocks that traded, 976 rose and 1,734 fell.

The S&P 500-0.70%closed at 117.12
How big a move#9,220of 24,799 trading days since 1928
$100 in the index since$6,578price only, to September 24, 2026
Stocks that rose976of 4,514; 1,734 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Petrolane Inc (PTO)+10.5%
Hudson's Bay Oil & Gas Co (HBO)+6.0%
Louisiana-Pacific (LPX)+5.9%

Biggest falls among the 500 largest companies

El Paso Co (ELG)-11.5%
GPU Inc (General Public Utilities) (GPU)-11.3%
Nvf Co-10.8%

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

‹ February 8, 1980 · Every February 11 · February 12, 1980 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.