Profits Matter Most for U.S. Stocks as Economy Fixation Dims

Profits are moving U.S. equity prices more than any time since the bull market began 3 1/2 years ago, rewarding investors for picking stocks based on company data instead of following the herd rocked by Europe’s debt crisis and the slowing U.S. economy.

Companies in the Standard & Poor’s 500 Index rose or fell an average of 4.4 percent the day after releasing results since July, according to data compiled by Bloomberg. The last time they moved more was in the second quarter of 2009. Daily swings in the benchmark gauge narrowed to 0.4 percent last month from