FHA endorsements decreased almost 20 percent in early August, and FHA refinances hit their lowest level since January as climbing mortgage rates put an end to the refi boom. Compared to the second half of July, FHA purchase endorsements dropped off 16.0 percent and refinances fell 24.5 percent, according to the latest Department of Housing and Urban Development data. Refis also made up just 37.5 percent of the...