Underfolio

Every trading day › 1979

The stock market on August 9, 1979

August 9, 1979, a Thursday. The S&P 500 fell 0.46% to close at 105.49. Of 4,511 US stocks that traded, 1,164 rose and 1,260 fell.

The S&P 500-0.46%closed at 105.49
How big a move#13,127of 24,799 trading days since 1928
$100 in the index since$7,303price only, to September 24, 2026
Stocks that rose1,164of 4,511; 1,260 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Chrysler Corp (C)+12.9%
Mgic Investment Corp (MGI)+10.3%
Nlt Corp (NLT)+6.5%

Biggest falls among the 500 largest companies

Manufactures Hanover (MHC)-5.8%
Houston Pipe Line Co-3.6%
PepsiAmericas (WH)-3.3%

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

‹ August 8, 1979 · Every August 9 · August 10, 1979 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.