New production of agency single-family MBS increased by 6.6 percent from July to August as the midyear home-buying season continued to generate a healthy supply of new primary market originations, according to a new Inside MBS & ABS analysis. Mortgage lenders last month pushed a total of $90.95 billion of single-family MBS through the securitization programs of Fannie Mae, Freddie Mac and Ginnie Mae. It was the biggest monthly volume since September 2013, but August issuance was boosted by an unusually large volume of seasoned loans that also helped tilt the competitive landscape. Freddie saw...[Includes two data charts]