4 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”).

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.

CNO Financial Group, Inc. (CNO) shows solid improvement this week. The company’s rating rises from a C to a B. CNO Financial Group, Inc. engages in the development, marketing, and administration of health insurance, annuity, individual life insurance, and other insurance products for senior and middle-income markets in the United States. The company also gets A’s in operating margin growth and free cash flow. For more information, get Portfolio Grader’s complete analysis of CNO stock.

Citizens, Inc. Class A (CIA) earns a B this week, jumping up from last week’s grade of C. Citizens, Inc. Class A provides life and health insurance products, including ordinary whole-life policies and endowment policies. For more information, get Portfolio Grader’s complete analysis of CIA stock.

WMIH Corp. (WMIH) is seeing ratings go up from a C last week to a B this week. For more information, get Portfolio Grader’s complete analysis of WMIH 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.