Underfolio

Every trading day › 1989

The stock market on October 9, 1989

October 9, 1989, a Monday. The S&P 500 rose 0.28% to close at 359.80. Of 5,884 US stocks that traded, 1,739 rose and 1,641 fell.

The S&P 500+0.28%closed at 359.80
How big a move#16,902of 24,799 trading days since 1928
$100 in the index since$2,141price only, to September 24, 2026
Stocks that rose1,739of 5,884; 1,641 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

US Airways Group (U)+7.5%
Compaq Computer (CPQ)+6.3%
Walt Disney (DIS)+5.3%

Biggest falls among the 500 largest companies

Continental Telecom (CTC)-3.1%
Aflac (AFL)-2.8%
Alexander & Alexander (AAL)-2.6%

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

‹ October 6, 1989 · Every October 9 · October 10, 1989 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.