Mortgage rates are continuing to march lower. According to Freddie Mac, the 30-year fixed-rate mortgage fell in the past week to 6.35%. The 15-year fixed rate dropped 10 basis points to 5.50%. “The 30-year fixed-rate mortgage fell 15 basis points from last week, the largest weekly drop in the past year,” Sam Khater, Freddie Mac’s chief economist, said in a release. “Mortgage rates are headed in the right direction and homebuyers have noticed, as purchase applications reached the highest year-over-year gro ...