Q1 2019Q4 2018Q3 2018Q2 2018Q1 2018
Gross profit (MM)$148.5$166.2$162.5$155.0$139.1
Gross profit growth6.8%-1.2%4.1%4.2%4.2%
Operating income (MM)$23.2$45.7$33.1$34.3$16.3
Operating income growth42.1%6.9%0.6%3.3%-25.1%
Net income (MM)$18.3$34.2$12.1$22.9$11.7
Net income growth57.1%22.2%-48.0%9.9%-15.6%
Diluted EPS$0.39$0.72$0.25$0.47$0.24
Diluted EPS growth62.7%26.6%-46.0%13.2%-13.9%