Underfolio

Every trading day › 1989

The stock market on October 16, 1989

October 16, 1989, a Monday. The S&P 500 rose 2.76% to close at 342.85. Of 5,878 US stocks that traded, 1,160 rose and 3,483 fell.

The S&P 500+2.76%closed at 342.85
How big a move#821of 24,799 trading days since 1928
$100 in the index since$2,247price only, to September 24, 2026
Stocks that rose1,160of 5,878; 3,483 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

ConAgra Foods (CAG)+15.2%
Tandem Computers Inc (TDM.)+13.1%
Citicorp+12.1%

Biggest falls among the 500 largest companies

American Airlines Group (AMR)-22.4%
Ual Corp. (UAL)-20.3%
Brunswick (BC)-4.7%

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

‹ October 13, 1989 · Every October 16 · October 17, 1989 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.