Underfolio

Every trading day › 1983

The stock market on October 27, 1983

October 27, 1983, a Thursday. The S&P 500 fell 0.33% to close at 164.84. Of 5,454 US stocks that traded, 1,239 rose and 1,997 fell.

The S&P 500-0.33%closed at 164.84
How big a move#15,932of 24,799 trading days since 1928
$100 in the index since$4,674price only, to September 24, 2026
Stocks that rose1,239of 5,454; 1,997 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Hutton (E.F.) Group (EFH)+7.1%
Dome Petroleum Ltd (DMP)+5.9%
Apple (AAPL)+5.0%

Biggest falls among the 500 largest companies

Fort James (FJ)-9.9%
Pe Corp-Pe Biosy (PEB)-8.8%
Lubrizol (LZ)-8.1%

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

‹ October 26, 1983 · Every October 27 · October 28, 1983 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.