A gauge of US service activity posts is biggest monthly jump since 1997 as the economy reopens

· The Institute for Supply Management's non-manufacturing index jumped 11.7 points to 57.1 in June, according to a Monday report.
· It's the largest ever single-month jump for the index, and pushes it to a four-month high following two months of contractions. It also exceeded the median economist estimate of a rise to...