Q3 2017Q2 2017Q1 2017Q4 2016Q3 2016
Gross margin33.9%31.1%39.0%28.8%35.5%
Gross margin growth (bps)-153-591-357-726-174
Operating margin-0.7%-1.7%10.6%-10.8%1.0%
Operating margin growth (bps)-170-862-787-1,706-278
Net profit margin1.4%-0.4%9.4%-5.8%3.9%
Net profit margin growth (bps)-253-708-310-1,05426