Fannie Mae, Freddie Mac and Ginnie Mae each recorded double-digit increases in single-family business in July, marking the fourth straight monthly gain, according to a new ranking and analysis by Inside MBS & ABS, an affiliated newsletter. The three produced $85.3 billion of single-family mortgage-backed securities last month, an 11.6 percent increase from June’s volume. The biggest increase was at Fannie, where production was up 12.6 percent for the month. The steady gains in production starting in April have not been...