Napm Index Monday, Apr. 4, 10 A.M.

The National Association of Purchasing Management's index of business activity probably rose to 57% in March, from 56.6% in February. That strong reading is the median forecast of economists surveyed by MMS International, a unit of McGraw-Hill Inc. Economists will want to see if the NAPM index of dew orders rebounded in March after slipping a bit in February.