5 Insurance stocks are moving up in their overall rating this week, according to the Portfolio Grader database. Every one of these is graded an “A” (“strong buy”) or “B” overall (“buy”).

Alleghany Corporation (Y) boosts its rating from a C to a B this week. Alleghany Corporation engages in the property and casualty, and surety insurance business in the United States. The company also gets A’s in earnings revisions and free cash flow. For more information, get Portfolio Grader’s complete analysis of Y stock.

ACE Limited’s (ACE) ratings are looking better this week, moving up to a B from last week’s C. ACE Limited provides a range of insurance and reinsurance products worldwide. For more information, get Portfolio Grader’s complete analysis of ACE stock.

This week, AMERISAFE, Inc.’s (AMSF) ratings are up from a B last week to a A. AMERISAFE, Inc. markets and underwrites workers’ compensation insurance. For more information, get Portfolio Grader’s complete analysis of AMSF stock.

Aviva plc Sponsored ADR (AV) shows solid improvement this week. The company’s rating rises from a C to a B. Aviva plc Sponsored ADR provides insurance, savings, and fund management products and services worldwide. For more information, get Portfolio Grader’s complete analysis of AV stock.

Kingstone Companies, Inc. (KINS) improves from a B to a A rating this week. Kingstone Companies, Inc. offers homeowners, automobile, fire, canine legal liability, business owner, and umbrella coverages. The company also gets A’s in operating margin growth and free cash flow. For more information, get Portfolio Grader’s complete analysis of KINS 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.