The supply of home mortgage debt outstanding increased by 0.5 percent during the third quarter of 2015, following a similar modest gain during the previous period. A total of $9.952 trillion of single-family mortgage debt was outstanding at the end of September, according to a Federal Reserve report released late last week. It represented a second consecutive quarterly increase, something the mortgage servicing market has struggled to accomplish during the long contraction that started back in 2008. Most of the increase came...[Includes one data table]