Underfolio

Every trading day › 1984

The stock market on September 4, 1984

September 4, 1984, a Tuesday. The S&P 500 fell 1.08% to close at 164.88. Of 5,789 US stocks that traded, 1,044 rose and 2,239 fell.

The S&P 500-1.08%closed at 164.88
How big a move#5,395of 24,799 trading days since 1928
$100 in the index since$4,673price only, to September 24, 2026
Stocks that rose1,044of 5,789; 2,239 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

Dome Petroleum Ltd (DMP)+11.1%
Carnation (CMK)+5.3%
Revlon Inc -old+4.3%

Biggest falls among the 500 largest companies

Tenet Healthcare (THC)-8.5%
Humana (HUM)-6.4%
Monsanto (MTC)-6.0%

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

‹ August 31, 1984 · Every September 4 · September 5, 1984 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.