Underfolio

Every trading day › 1999

The stock market on May 18, 1999

May 18, 1999, a Tuesday. The S&P 500 fell 0.46% to close at 1333.32. Of 6,847 US stocks that traded, 2,794 rose and 2,950 fell.

The S&P 500-0.46%closed at 1333.32
How big a move#13,163of 24,799 trading days since 1928
$100 in the index since$578price only, to September 24, 2026
Stocks that rose2,794of 6,847; 2,950 fell
Biggest companyMicrosoftby market value that day

Biggest rises among the 500 largest companies

Parametric Techn (PMTC)+15.1%
Covad Commun Grp (COVD)+12.0%
NetApp (NTAP)+10.2%

Biggest falls among the 500 largest companies

Panamsat Corp (SPOT)-10.6%
Starbucks (SBUX)-7.1%
Qwest Communications (Q)-6.8%

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

‹ May 17, 1999 · Every May 18 · May 19, 1999 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.