U.S. futures signal positive start to the week
S&P 500 earnings expected to rise little more than 3% year-over-year during the first quarter
Slowing Chinese growth drags commodity prices lower
Alcoa reassures on earnings, outlook
U.S. futures sharply higher
Selloff continues as Chinese data reinforces worry about economic revival
Chinese data reinforces worries about economic revival
U.S. jobs data misses forecasts, depresses commodities
U.S. jobs data widely misses forecasts
U.S. earnings season gets set to kick off Tuesday with results from aluminum giant Alcoa