Underfolio

Every trading day › 1983

The stock market on September 19, 1983

September 19, 1983, a Monday. The S&P 500 rose 0.82% to close at 167.62. Of 5,355 US stocks that traded, 2,124 rose and 1,256 fell.

The S&P 500+0.82%closed at 167.62
How big a move#7,751of 24,799 trading days since 1928
$100 in the index since$4,596price only, to September 24, 2026
Stocks that rose2,124of 5,355; 1,256 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Apple (AAPL)+8.9%
Analog Devices, Inc. (ADI)+8.4%
Lockheed Martin (LMT)+6.8%

Biggest falls among the 500 largest companies

Televideo Inc (TELVQ)-3.5%
Maxus Energy (MXS)-3.4%
Ethyl (NEU)-3.2%

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

‹ September 16, 1983 · Every September 19 · September 20, 1983 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.