The Judo Bank Australia Manufacturing PMI, a Purchasing Managers' Index for factories, is compiled by S&P Global and published with Judo Bank. Running since May 2016, each month it surveys purchasing managers, staff who buy inputs for producers. The panel holds around 400 manufacturers stratified by sector and workforce size based on GDP contributions. It blends 5 diffusion indices, which gauge the direction of change, into 1 headline where above 50 means improvement and below 50 means deterioration.
It belongs to surveys covering over 40 countries, described as the most closely watched business surveys by central banks, financial markets and decision makers. It does not track United States factories, direct output volumes or gross domestic product (GDP). The Composite and Services gauges are not comparable with it.