Underfolio

Every trading day › 1998

The stock market on September 23, 1998

September 23, 1998, a Wednesday. The S&P 500 rose 3.54% to close at 1066.09. Of 7,250 US stocks that traded, 4,149 rose and 2,018 fell.

The S&P 500+3.54%closed at 1066.09
How big a move#418of 24,799 trading days since 1928
$100 in the index since$723price only, to September 24, 2026
Stocks that rose4,149of 7,250; 2,018 fell
Biggest companyMicrosoftby market value that day
Last day of trading for4stocks

Biggest rises among the 500 largest companies

Amazon.com (AMZN)+19.2%
Amfm Inc (AFM)+15.4%
Qwest Communications (Q)+15.0%

Biggest falls among the 500 largest companies

Mattel (MAT)-7.8%
Owens-Illinois (OI)-5.8%
Danaher (DHR)-5.7%

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

‹ September 22, 1998 · Every September 23 · September 24, 1998 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.