The stock market on May 20, 1999
May 20, 1999, a Thursday. The S&P 500 fell 0.40% to close at 1338.83. Of 6,846 US stocks that traded, 3,371 rose and 2,472 fell.
The S&P 500-0.40%closed at 1338.83
How big a move#14,319of 24,799 trading days since 1928
$100 in the index since$575price only, to September 24, 2026
Stocks that rose3,371of 6,846; 2,472 fell
Biggest companyMicrosoftby market value that day
Last day of trading for3stocks
Biggest rises among the 500 largest companies
| Healtheon/Webmd (HLTH) | +25.4% |
| UnitedHealth Group (UNH) | +11.3% |
| Clmbia Hca Hlthc (COL) | +7.8% |
Biggest falls among the 500 largest companies
| Covad Commun Grp (COVD) | -10.2% |
| RealNetworks, Inc. (RNWK) | -8.5% |
| Panamsat Corp (SPOT) | -8.4% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ May 19, 1999 · Every May 20 · May 21, 1999 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.