Underfolio

Every trading day › 2006

The stock market on December 18, 2006

December 18, 2006, a Monday. The S&P 500 fell 0.32% to close at 1422.48. Of 4,848 US stocks that traded, 1,383 rose and 3,283 fell.

The S&P 500-0.32%closed at 1422.48
How big a move#16,033of 24,799 trading days since 1928
$100 in the index since$542price only, to September 24, 2026
Stocks that rose1,383of 4,848; 3,283 fell
Biggest companyExxon Mobilby market value that day

Biggest rises among the 500 largest companies

Caremark Rx (CMX)+10.5%
Terex (TEX)+10.1%
Weight Watchers (WTW)+9.2%

Biggest falls among the 500 largest companies

Grant Prideco Inc (GRP.)-6.3%
National Oilwell Varco (NOV)-6.1%
L3 Technologies (LLL)-5.6%

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

‹ December 15, 2006 · Every December 18 · December 19, 2006 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.