Underfolio

Every trading day › 1983

The stock market on September 8, 1983

September 8, 1983, a Thursday. The S&P 500 fell 0.11% to close at 167.77. Of 5,343 US stocks that traded, 1,689 rose and 1,425 fell.

The S&P 500-0.11%closed at 167.77
How big a move#21,475of 24,799 trading days since 1928
$100 in the index since$4,592price only, to September 24, 2026
Stocks that rose1,689of 5,343; 1,425 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

Berkshire Hathaway (BRK)+7.9%
Maxus Energy (MXS)+6.7%
NL Industries, Inc. (NL)+6.0%

Biggest falls among the 500 largest companies

Apple (AAPL)-8.3%
Coca-Cola (KO)-6.7%
Rockwell Automation (ROK)-5.4%

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

‹ September 7, 1983 · Every September 8 · September 9, 1983 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.