About US manufacturing PMI
The S&P Global US Manufacturing PMI is compiled by S&P Global from responses to questionnaires sent to purchasing managers in a panel of around 800 manufacturers. The headline figure is the Purchasing Managers’ Index (PMI), which is a weighted average of the following five indices: New Orders (30%), Output (25%), Employment (20%), Suppliers’ Delivery Times (15%) and Stocks of Purchases (10%). For the PMI calculation the Suppliers’ Delivery Times Index is inverted so that it moves in a comparable direction to the other indices. The index varies between 0 and 100, with a reading above 50 indicating an overall increase compared to the previous month, and below 50 an overall decrease.