Underfolio

Every trading day › 1999

The stock market on April 21, 1999

April 21, 1999, a Wednesday. The S&P 500 rose 2.29% to close at 1336.12. Of 6,863 US stocks that traded, 3,703 rose and 2,194 fell.

The S&P 500+2.29%closed at 1336.12
How big a move#1,246of 24,799 trading days since 1928
$100 in the index since$577price only, to September 24, 2026
Stocks that rose3,703of 6,863; 2,194 fell
Biggest companyMicrosoftby market value that day
Last day of trading for5stocks

Biggest rises among the 500 largest companies

Qualcomm (QCOM)+38.7%
Knight/Trimark (NITE)+38.0%
Lycos Inc (LCOS)+37.4%

Biggest falls among the 500 largest companies

NCR Corporation (NCR)-16.3%
Amgen (AMGN)-7.2%
Micron Technology (MU)-6.2%

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

‹ April 20, 1999 · Every April 21 · April 22, 1999 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.