For the current week, the overall ratings of four insurance stocks are worse, according to the Portfolio Graderdatabase. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

Ambac Financial Group, Inc.’s (AMBC) rating falls to a D (“sell”) this week, down from C (“hold”) the week prior. The stock also earns F’s in Portfolio Grader’s specific subcategories of Earnings Growth, Earnings Momentum, Margin Growth and Sales Growth. For more information, get Portfolio Grader’s complete analysis of AMBC stock.

Independence Holding Company (IHC) earns a D this week, moving down from last week’s grade of C. Independence Holding sells life and health insurance. The stock also gets an F in Sales Growth. To get an in-depth look at IHC, get Portfolio Grader’s complete analysis of IHC stock.

This is a rough week for United Fire Group, Inc. (UFCS). The company’s rating falls to D from the previous week’s C. United Fire engages in writing property, casualty, and life insurance products and selling fixed annuities in the United States. The stock also gets an F in Earnings Growth. For more information, get Portfolio Grader’s complete analysis of UFCS stock.

Baldwin & Lyons, Inc. Class B (BWINB) experiences a ratings drop this week, going from last week’s C to a D. Baldwin & Lyons markets and underwrites property and casualty insurance. The stock also rates an F in Earnings Surprise. Trade volume is up 831.7% from the previous week. To get an in-depth look at BWINB, get Portfolio Grader’s complete analysis of BWINB 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.