Q3 2017Q2 2017Q1 2017Q4 2016Q3 2016
Gross margin33.1%35.5%32.2%36.2%35.1%
Gross margin growth (bps)-204-99-167145167
Operating margin-4.6%-2.9%-7.0%6.9%-2.1%
Operating margin growth (bps)-251136-325-1574
Net profit margin-8.0%-6.3%-10.4%5.0%-5.2%
Net profit margin growth (bps)-27861-415-3510