Underfolio

Every trading day › 1979

The stock market on December 21, 1979

December 21, 1979, a Friday. The S&P 500 fell 0.62% to close at 107.59. Of 4,520 US stocks that traded, 1,071 rose and 1,388 fell.

The S&P 500-0.62%closed at 107.59
How big a move#10,451of 24,799 trading days since 1928
$100 in the index since$7,161price only, to September 24, 2026
Stocks that rose1,071of 4,520; 1,388 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Nvf Co+9.7%
Stanley Black & Decker (SWK)+9.2%

Biggest falls among the 500 largest companies

Columbia Energy Group-5.4%
Hercules (HPC)-4.7%
Burlington Industries Equity-4.4%

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

‹ December 20, 1979 · Every December 21 · December 24, 1979 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.