Originations of purchase mortgages were strong in the second quarter of 2015 and through the start of summer, according to industry participants. In recent months, demand for home purchases has been driven by current homeowners and first-time homebuyers, two groups that are particularly reliant on mortgage financing. “The purchase market has been stronger than people expected in the second quarter,” said Paul Miller, a managing director at FBR Capital Markets. Kevin Hester, chief lending officer at Home BancShares, said...