A large decline in interest rates in the past year created millions of refinance opportunities for lenders, according to industry analysts. However, prepayment risk on MBS backed by Fannie Mae, Freddie Mac and Ginnie Mae appears to be decreasing as interest rates increase. As of the end of April, 7.0 million borrowers were likely to both qualify for and benefit from refinancing, according to Black Knight Financial Services. That was up from 4.5 million potential refi borrowers a year ago as interest rates on 30-year fixed-rate mortgages declined by 70 basis points in that time, according to Freddie’s Primary Mortgage Market Survey. “This is...[Includes one data table]