Underfolio

Every trading day › 1971

The stock market on December 21, 1971

December 21, 1971, a Tuesday. The S&P 500 rose 0.25% to close at 101.80. Of 2,396 US stocks that traded, 949 rose and 990 fell.

The S&P 500+0.25%closed at 101.80
How big a move#17,811of 24,799 trading days since 1928
$100 in the index since$7,568price only, to September 24, 2026
Stocks that rose949of 2,396; 990 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

OfficeMax (BCC)+9.2%
Pan Am Corp+8.4%
Fannie Mae (FNMA)+6.6%

Biggest falls among the 500 largest companies

Texasgulf (TG)-8.5%
Psi Resources Inc-3.9%
Anaconda (A)-3.8%

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

‹ December 20, 1971 · Every December 21 · December 22, 1971 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.