Underfolio

Every trading day › 1999

The stock market on September 20, 1999

September 20, 1999, a Monday. The S&P 500 rose 0.01% to close at 1335.53. Of 6,761 US stocks that traded, 2,327 rose and 3,323 fell.

The S&P 500+0.01%closed at 1335.53
How big a move#24,360of 24,799 trading days since 1928
$100 in the index since$577price only, to September 24, 2026
Stocks that rose2,327of 6,761; 3,323 fell
Biggest companyMicrosoftby market value that day
Last day of trading for5stocks

Biggest rises among the 500 largest companies

I C G Group Inc (ICGE)+20.3%
Voicestream Wire (VSTR)+10.5%
Priceline.com (PCLN)+10.2%

Biggest falls among the 500 largest companies

Lincoln National (LNC)-9.7%
Abercrombie & Fitch Company (ANF)-5.8%

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

‹ September 17, 1999 · Every September 20 · September 21, 1999 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.