Securitization rates appeared to rebound strongly in the first quarter of 2017, with an estimated 79.5 percent of primary-market mortgage originations finding their way into a variety of MBS, according to a new Inside MBS & ABS analysis. That’s up from a 69.1 percent securitization rate for all of 2016 and, if it keeps up for the rest of 2017, it would be the highest mark since 2013. In the fourth quarter of 2016, the rate was 72.7 percent. Both new MBS production and primary-market originations were...[Includes one data table]