Mortgage brokers accounted for almost 13 percent of originations packaged into Fannie Mae and Freddie Mac securities in the first quarter of 2015, one of the highest readings in quite some time, according to loan-level data compiled by Inside Mortgage Finance. In the fourth quarter, the broker market share was 10.0 percent, a figure that includes originations of all loan types and not just ones packaged into securities. Over the past several quarters, there has been...