Underfolio

Every trading day › 1982

The stock market on September 17, 1982

September 17, 1982, a Friday. The S&P 500 fell 0.99% to close at 122.55. Of 4,999 US stocks that traded, 1,086 rose and 1,723 fell.

The S&P 500-0.99%closed at 122.55
How big a move#6,168of 24,799 trading days since 1928
$100 in the index since$6,287price only, to September 24, 2026
Stocks that rose1,086of 4,999; 1,723 fell
Biggest companyAT&T Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

Martin Marietta (ML)+22.3%
Pogo Producing Co (PPP)+14.0%
Natomas Co (NOM)+11.6%

Biggest falls among the 500 largest companies

United Energy Resources-10.0%
M/a-com (MAI)-7.6%
Bendix Corp-6.1%

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

‹ September 16, 1982 · Every September 17 · September 20, 1982 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.