Rate changes being made by Radian Guaranty Inc. will improve mortgage insurance premiums for higher loan amounts, refinances and borrowers with high credit scores.

The Philadelphia-based company is expanding the number of credit-score categories for borrower-paid single rates from four FICO buckets to eight buckets.

The lowest FICO bucket is for credit scores that range from 620 to 639, while the highest FICO bucket is for scores of at least 760.

Source: Mortgage Daily