Underfolio

Every trading day › 1971

The stock market on May 17, 1971

May 17, 1971, a Monday. The S&P 500 fell 1.49% to close at 100.69. Of 2,319 US stocks that traded, 331 rose and 1,687 fell.

The S&P 500-1.49%closed at 100.69
How big a move#3,127of 24,799 trading days since 1928
$100 in the index since$7,651price only, to September 24, 2026
Stocks that rose331of 2,319; 1,687 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

U S West Communications Inc+2.7%
Mayer (oscar) & Co (OMC.)+2.6%
Dana (DAN)+2.2%

Biggest falls among the 500 largest companies

Freeport-McMoran (FTX)-7.7%
RadioShack (TAN)-7.6%
Flagstar Corp-7.1%

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

‹ May 14, 1971 · Every May 17 · May 18, 1971 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.