Underfolio

Every trading day › 1979

The stock market on September 21, 1979

September 21, 1979, a Friday. The S&P 500 fell 0.04% to close at 110.47. Of 4,505 US stocks that traded, 1,424 rose and 1,086 fell.

The S&P 500-0.04%closed at 110.47
How big a move#23,683of 24,799 trading days since 1928
$100 in the index since$6,974price only, to September 24, 2026
Stocks that rose1,424of 4,505; 1,086 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

Cameron Iron Works (CIW)+7.5%
Chrysler Corp (C)+6.5%
Mgic Investment Corp (MGI)+6.0%

Biggest falls among the 500 largest companies

Dole Food (DOLE)-6.8%
Columbia Energy Group-6.7%
Pittston Brinks (PZB)-5.1%

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

‹ September 20, 1979 · Every September 21 · September 24, 1979 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.