This week, 5 Insurance stocks are improving their overall rating on Portfolio Grader. Each of these rates an “A” (“strong buy”) or “B” overall (“buy”).

White Mountains Insurance Group Ltd (WTM) improves from a C to a B rating this week. White Mountains Insurance Group Ltd provides property and casualty insurance, and reinsurance. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of WTM stock.

James River Group Holdings Ltd’s (JRVR) ratings are looking better this week, moving up to a A from last week’s B. For more information, get Portfolio Grader’s complete analysis of JRVR stock.

EMC Insurance Group Inc. (EMCI) boosts its rating from a C to a B this week. EMC Insurance Group Inc. focuses on the sale of commercial lines of property and casualty insurance to small and medium-sized businesses, institutions, and individual customers through independent insurance agents. For more information, get Portfolio Grader’s complete analysis of EMCI stock.

The rating of National General Holdings Corp. (NGHC) moves up this week, rising from a C to a B. The company also gets A’s in sales growth and free cash flow. For more information, get Portfolio Grader’s complete analysis of NGHC stock.

Blue Capital Reinsurance Holdings Ltd. (BCRH) gets a higher grade this week, advancing from a B last week to a A. The company also gets A’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of BCRH stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.