Underfolio

Every trading day › 1970

The stock market on December 31, 1970

December 31, 1970, a Thursday. The S&P 500 fell 0.13% to close at 92.15. Of 2,292 US stocks that traded, 961 rose and 890 fell.

The S&P 500-0.13%closed at 92.15
How big a move#20,976of 24,799 trading days since 1928
$100 in the index since$8,360price only, to September 24, 2026
Stocks that rose961of 2,292; 890 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

Ethyl (NEU)+6.8%
Kellogg (K)+6.7%
DTE Energy (DTE)+6.5%

Biggest falls among the 500 largest companies

CVS Health (CVS)-6.3%
Digital Equipment (DEC)-5.0%
Airco Inc (AN)-4.8%

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

‹ December 30, 1970 · Every December 31 · January 4, 1971 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.