Underfolio

Every trading day › 1983

The stock market on August 9, 1983

August 9, 1983, a Tuesday. The S&P 500 rose 0.60% to close at 160.13. Of 5,304 US stocks that traded, 1,283 rose and 2,100 fell.

The S&P 500+0.60%closed at 160.13
How big a move#10,780of 24,799 trading days since 1928
$100 in the index since$4,811price only, to September 24, 2026
Stocks that rose1,283of 5,304; 2,100 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Midcon Corp (MCN)+6.7%
Intel (INTC)+6.2%
Pfizer (PFE)+6.2%

Biggest falls among the 500 largest companies

Metromedia (MET)-11.0%
Intergraph Corp (INGR.)-8.3%
Clorox (CLX)-7.0%

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

‹ August 8, 1983 · Every August 9 · August 10, 1983 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.