Radian Guaranty became the latest private mortgage insurer to announce proposed changes to its premium rate card as it followed the rest of the industry in moving more towards risk-based pricing. Radian’s announcement brings to six the number of private MIs that have updated rate cards to align with the new capital requirements under the government-sponsored enterprises’ Private Mortgage Insurer Eligibility Requirements (PMIERs) that were implemented in January 2016. United Guaranty has yet to make an announcement, and a spokesman declined to comment.Some MIs have opted for earlier effective dates for the new pricing, while others have decided on either April 4 or April 7, 2016, as their effective date.