Through Friday, with the latest quarterly results in from more than three-fifths of the S&P 500, 77% have turned in earnings per share higher than analysts expected, according to FactSet.

A historically pricey stock market has been a harbinger of trouble to come for Wall Street for more than 150 years, which is why earnings quality from America's most influential businesses is more ...

Corporate earnings ... Jones Industrial Average. In the three months ending December 31, 3M's revenue increased 0.1% year over year to $6 billion, while its earnings per share declined 1.2% ...