What Led to the Rebound of ISM New Orders Index in May?

The ISM (Institute of Supply Management) publishes a monthly manufacturing (FIDU) report on changes to new orders, supplier deliveries, inventories, production, and employment. About 400 industries (XLI) are surveyed for inputs to construct this diffusion index. Eleven indexes used these survey results, and the ISM New Orders Index captures the changes in the level of new orders at the producer (RGI) level.