This week, 10 Insurance stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

This week, Aon plc (AON) pushes up from a B to a A rating. Aon plc provides risk management and human capital consulting services, including solutions to workforce productivity and insurance and reinsurance brokerage. The company also gets A’s in earnings growth and return on equity. For more information, get Portfolio Grader’s complete analysis of AON stock.

This week, Endurance Specialty Holdings Ltd.’s (ENH) ratings are up from a C last week to a B. Endurance Specialty Holdings Ltd. underwrites specialty lines of personal and commercial property and casualty insurance and reinsurance worldwide. The company also gets A’s in sales growth. For more information, get Portfolio Grader’s complete analysis of ENH stock.

Assurant, Inc. (AIZ) gets a higher grade this week, advancing from a C last week to a B. Assurant, Inc. is a provider of specialized insurance products and services in North America and international markets. The company also gets A’s in operating margin growth, earnings growth, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of AIZ stock.

Torchmark Corporation (TMK) earns a B this week, jumping up from last week’s grade of C. Torchmark Corporation is an insurance holding company and a provider of various life and health insurance products and annuities. The company also gets A’s in free cash flow. For more information, get Portfolio Grader’s complete analysis of TMK stock.

ProAssurance Corporation (PRA) boosts its rating from a C to a B this week. ProAssurance Corporation provides medical and other professional liability insurance products to individuals and institutions engaged in the delivery of healthcare in the United States. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of PRA stock.

Allied World Assurance Company Holdings, AG’s (AWH) ratings are looking better this week, moving up to a B from last week’s C. Allied World Assurance Company Holdings, AG provides property and casualty insurance and reinsurance to international customers. The company also gets A’s in earnings growth, earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of AWH stock.

United Fire Group, Inc. (UFCS) is seeing ratings go up from a C last week to a B this week. United Fire Group, Inc. engages in writing property, casualty, and life insurance products and selling fixed annuities in the United States. For more information, get Portfolio Grader’s complete analysis of UFCS stock.

This is a strong week for James River Group Holdings Ltd (JRVR). The company’s rating climbs to A from the previous week’s B. For more information, get Portfolio Grader’s complete analysis of JRVR stock.

Crawford & Company Class B (CRD.B) shows solid improvement this week. The company’s rating rises from a B to a A. Crawford & Company Class B is an independent provider of claims management solutions to insurance companies and self-insured entities. The company also gets A’s in earnings growth, earnings surprise, earnings momentum, and return on equity. For more information, get Portfolio Grader’s complete analysis of CRD.B stock.

The rating of 1347 Property Insurance Holdings, Inc. (PIH) moves up this week, rising from a D to a B. The company also gets A’s in sales growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of PIH 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.