Underfolio

Every trading day › 1970

The stock market on February 17, 1970

February 17, 1970, a Tuesday. The S&P 500 fell 0.12% to close at 86.37. Of 2,228 US stocks that traded, 754 rose and 1,071 fell.

The S&P 500-0.12%closed at 86.37
How big a move#21,407of 24,799 trading days since 1928
$100 in the index since$8,920price only, to September 24, 2026
Stocks that rose754of 2,228; 1,071 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Salomon+9.0%
S&P Global (MHP)+8.3%
Atlantic Richfield (ARCO) (ARC)+7.0%

Biggest falls among the 500 largest companies

Mcdermott Intl Inc (MDRIQ)-10.6%
Gdv Inc (GDVI)-5.3%
Litton Industries (LIT)-5.2%

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

‹ February 16, 1970 · Every February 17 · February 18, 1970 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.