The stock market on December 20, 2006
December 20, 2006, a Wednesday. The S&P 500 fell 0.14% to close at 1423.53. Of 4,841 US stocks that traded, 2,589 rose and 2,012 fell.
The S&P 500-0.14%closed at 1423.53
How big a move#20,661of 24,799 trading days since 1928
$100 in the index since$541price only, to September 24, 2026
Stocks that rose2,589of 4,841; 2,012 fell
Biggest companyExxon Mobilby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| CarMax (KMX) | +8.5% |
| Maxim Integrated (MXIM) | +4.4% |
| Medco Health Solutions (MHS) | +3.8% |
Biggest falls among the 500 largest companies
| Southern Copper (PCU) | -4.1% |
| Cintas Corporation (CTAS) | -4.0% |
| Norfolk Southern (NSC) | -3.7% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
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Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.