Underfolio

Every trading day › 1997

The stock market on October 17, 1997

October 17, 1997, a Friday. The S&P 500 fell 1.16% to close at 944.16. Of 7,461 US stocks that traded, 1,576 rose and 4,717 fell.

The S&P 500-1.16%closed at 944.16
How big a move#4,778of 24,799 trading days since 1928
$100 in the index since$816price only, to September 24, 2026
Stocks that rose1,576of 7,461; 4,717 fell
Biggest companyGeneral Electricby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

Iomega Corp (IOM)+6.8%
Sprint Nextel (FON)+5.6%
Ascend Communications (ASND)+3.9%

Biggest falls among the 500 largest companies

Seagate Technology (SEG)-14.2%
Sun Microsystems (SUNW)-9.3%
Teradyne, Inc. (TER)-9.0%

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

‹ October 16, 1997 · Every October 17 · October 20, 1997 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.