Q4 2018Q3 2018Q2 2018Q1 2018Q4 2017
Gross profit (MM)$7,575.0$7,780.0$8,096.0$7,341.0$7,340.0
Gross profit growth3.2%8.9%7.1%3.2%2.6%
Operating income (MM)$1,511.0$1,601.0$1,980.0$1,322.0$1,114.0
Operating income growth35.6%5.5%33.9%-8.6%-2.3%
Net income (MM)$1,512.0$1,342.0$1,349.0$821.0$802.0
Net income growth88.5%15.5%27.3%-22.1%-22.1%
Diluted EPS$1.55$1.35$1.36$0.81$0.76
Diluted EPS growth104.3%25.6%38.8%-16.2%-20.0%