Underfolio

Every trading day › 2000

The stock market on January 31, 2000

January 31, 2000, a Monday. The S&P 500 rose 2.52% to close at 1394.46. Of 6,688 US stocks that traded, 2,389 rose and 3,459 fell.

The S&P 500+2.52%closed at 1394.46
How big a move#1,014of 24,799 trading days since 1928
$100 in the index since$552price only, to September 24, 2026
Stocks that rose2,389of 6,688; 3,459 fell
Biggest companyMicrosoftby market value that day
Last day of trading for6stocks

Biggest rises among the 500 largest companies

Baker Hughes (BKR)+18.6%
Electronic Arts (ERTS)+15.0%
Qualcomm (QCOM)+14.9%

Biggest falls among the 500 largest companies

Freemarkets Inc (FMKT)-15.8%
Red Hat Inc. (RHAT)-11.1%
Careinsite Inc. (CARI)-10.8%

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

‹ January 28, 2000 · Every January 31 · February 1, 2000 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.