Q2 2018Q1 2018Q4 2017Q3 2017Q2 2017
Gross profit (MM)$690.8$574.7$619.7$805.7$644.7
Gross profit growth7.2%-2.8%-11.1%-3.2%-3.0%
Operating income (MM)$199.1$149.4-$42.6$341.9$203.7
Operating income growth-2.3%-20.1%N/A-16.5%-25.4%
Net income (MM)$202.9$125.5-$26.8$271.3$160.9
Net income growth26.1%-14.7%N/A-7.9%-16.7%
Diluted EPS$1.32$0.80-$0.17$1.64$0.95
Diluted EPS growth38.1%-3.9%N/A3.0%-5.5%