The HCOB Eurozone Manufacturing PMI (Purchasing Managers' Index) is compiled by S&P Global and sponsored by Hamburg Commercial Bank. It is a monthly factory survey covering about 3000 manufacturing firms in 8 eurozone countries, equal to about 89% of eurozone factory activity. Panels are split by industry sector and firm size using each country's output share. It measures only manufacturing in the euro area, not services, United States factories or official output volumes.