Underfolio

Every trading day › 1989

The stock market on October 17, 1989

October 17, 1989, a Tuesday. The S&P 500 fell 0.49% to close at 341.16. Of 5,881 US stocks that traded, 1,806 rose and 2,133 fell.

The S&P 500-0.49%closed at 341.16
How big a move#12,580of 24,799 trading days since 1928
$100 in the index since$2,258price only, to September 24, 2026
Stocks that rose1,806of 5,881; 2,133 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Price Co (PCLB)+5.4%
Liz Claiborne (LIZ)+4.7%
Lotus Development Corp (LOTS.)+4.6%

Biggest falls among the 500 largest companies

Ual Corp. (UAL)-11.2%
Mccaw Cellular Communications (MCAWA)-6.1%
MCI Communications (MCIC.)-5.8%

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

‹ October 16, 1989 · Every October 17 · October 18, 1989 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.