Fannie Mae, Freddie Mac and Ginnie Mae saw a somewhat sedated increase in single-family mortgage-backed security issuance during the second quarter. The trends closely tracked forecasts. Agency purchase-mortgage business was up a solid 24.5 percent from the first quarter, boosting the 2018 market slightly ahead of where it was at the midway point last year. And refinance activity continued to tumble, dropping 21.3 percent from the first quarter to just ... [Includes two data charts]