Underfolio

Every trading day › 1999

The stock market on September 24, 1999

September 24, 1999, a Friday. The S&P 500 fell 0.24% to close at 1277.36. Of 6,756 US stocks that traded, 2,194 rose and 3,480 fell.

The S&P 500-0.24%closed at 1277.36
How big a move#18,022of 24,799 trading days since 1928
$100 in the index since$603price only, to September 24, 2026
Stocks that rose2,194of 6,756; 3,480 fell
Biggest companyMicrosoftby market value that day
Last day of trading for5stocks

Biggest rises among the 500 largest companies

Ariba Inc (ARBA)+17.0%
Phone.Com Inc (PHCM)+17.0%
Time Warner (AOL)+11.4%

Biggest falls among the 500 largest companies

Allstate (ALL)-11.0%
ConocoPhillips (P)-8.1%
Progressive (PGR)-8.0%

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

‹ September 23, 1999 · Every September 24 · September 27, 1999 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.