Nonprime mortgages held by the government-sponsored enterprises continued a gradual decline in the first quarter of 2017, according to an analysis by Inside Nonconforming Markets. Fannie Mae and Freddie Mac held nonprime mortgages with a total unpaid principal balance of $133.89 billion at the end of the quarter, down 5.3 percent from the end of 2016 and down 22.1 percent from the first quarter of last year. The holdings are largely ... [Includes one data chart]