Retail mortgage lending continued to lose market share in the second half of 2018, mostly due to a surge in correspondent production. A new Inside Mortgage Trends analysis of mortgage-backed securities data shows that the retail share of loans sold to Fannie Mae, Freddie Mac and Ginnie Mae fell to 48.6 percent last year. During the fourth quarter, sales of retail-originated loans declined by 14.9 percent, the sharpest downturn among ... [Includes two data charts]