Underfolio

Every trading day › 2006

The stock market on October 27, 2006

October 27, 2006, a Friday. The S&P 500 fell 0.85% to close at 1377.34. Of 4,853 US stocks that traded, 1,424 rose and 3,188 fell.

The S&P 500-0.85%closed at 1377.34
How big a move#7,510of 24,799 trading days since 1928
$100 in the index since$559price only, to September 24, 2026
Stocks that rose1,424of 4,853; 3,188 fell
Biggest companyExxon Mobilby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Vertex Pharmaceuticals Incorporated (VRTX)+17.6%
MedImmune (MEDI)+5.1%
NCR Corporation (NCR)+4.7%

Biggest falls among the 500 largest companies

MEMC Electronic Materials (WFR)-7.6%
Alltel (AT)-7.2%
Genworth Financial Inc (GNW)-7.0%

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

‹ October 26, 2006 · Every October 27 · October 30, 2006 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.