Margins Stagnate in S&P 500 for Longest Stretch in Three Years

Margins Stagnate in S&P 500 for Longest Stretch in Three Years

Daniel Acker/Bloomberg

The S&P 500 fell 1.5 percent to 1,411.94 last week as companies from Caterpillar Inc. to DuPont Co. said a slowdown in sales will curb earnings growth and analysts cut their margin forecasts.