The stock market on December 21, 1990
December 21, 1990, a Friday. The S&P 500 rose 0.49% to close at 331.75. Of 5,742 US stocks that traded, 1,794 rose and 1,738 fell.
The S&P 500+0.49%closed at 331.75
How big a move#12,569of 24,799 trading days since 1928
$100 in the index since$2,322price only, to September 24, 2026
Stocks that rose1,794of 5,742; 1,738 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| Oracle (ORCL) | +6.6% |
| PanEnergy (PEL) | +5.4% |
| OfficeMax (BCC) | +5.2% |
Biggest falls among the 500 largest companies
| Laboratory Corp. of America (LH) | -15.4% |
| Conner Peripherals (CNR) | -5.3% |
| PerkinElmer, Inc. (PKI) | -5.1% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ December 20, 1990 · Every December 21 · December 24, 1990 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.