Underfolio

Every trading day › 1998

The stock market on August 31, 1998

August 31, 1998, a Monday. The S&P 500 fell 6.80% to close at 957.28. Of 7,293 US stocks that traded, 776 rose and 5,849 fell.

The S&P 500-6.80%closed at 957.28
How big a move#75of 24,799 trading days since 1928
$100 in the index since$805price only, to September 24, 2026
Stocks that rose776of 7,293; 5,849 fell
Biggest companyGeneral Electricby market value that day
Last day of trading for6stocks

Biggest rises among the 500 largest companies

PeopleSoft, Inc. (PSFT)+3.2%
Rockwell Automation (ROK)+2.5%
General Dynamics (GD)+2.4%

Biggest falls among the 500 largest companies

At Home Corp-22.4%
Amazon.com (AMZN)-20.9%
Ciena Corporation (CIEN)-20.3%

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

‹ August 28, 1998 · Every August 31 · September 1, 1998 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.