Underfolio

Every trading day › 1980

The stock market on December 15, 1980

December 15, 1980, a Monday. The S&P 500 rose 0.17% to close at 129.45. Of 4,674 US stocks that traded, 1,554 rose and 1,436 fell.

The S&P 500+0.17%closed at 129.45
How big a move#19,872of 24,799 trading days since 1928
$100 in the index since$5,951price only, to September 24, 2026
Stocks that rose1,554of 4,674; 1,436 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Pacific Bell+8.4%
Murphy Oil Corporation (MUR)+6.8%
Fina Inc -cl A (FI)+6.2%

Biggest falls among the 500 largest companies

Navistar International (NAV)-6.4%
Twentieth Century-Fox Film-5.9%
Ual Corp. (UAL)-5.2%

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

‹ December 12, 1980 · Every December 15 · December 16, 1980 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.