Commercial banks and thrifts reported robust growth in their MBS portfolios during early 2015, including a special appetite for Ginnie Mae MBS, according to a new Inside MBS & ABS analysis of call-report data. Commercial banks and thrifts held $1.579 trillion of residential MBS at the end of March, a 2.6 percent increase from the previous quarter. It was the industry’s biggest MBS portfolio since the third quarter of 2012, when banks and thrifts held a record $1.617 trillion of mortgage securities. The biggest gain was...[Includes two data tables]