The ratings of four Electric Utilities stocks are down this week, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

FirstEnergy’s (NYSE:FE) rating falls to a D (“sell”) this week, down from C (“hold”) the week prior. FirstEnergy is a public utility holding company. For Portfolio Grader’s specific subcategory of Sales Growth, FE also gets an F. The stock price has dropped 5.1% over the past month, worse than the 2.4% increase the S&P 500 has seen over the same period of time. For a full analysis of FE stock, visit Portfolio Grader.

This week, Pepco Holdings’ (NYSE:POM) rating worsens to a D from the company’s C rating a week ago. Pepco Holdings primarily distributes, transmits, and supplies electricity and supplies natural gas to customers in New Jersey, Delaware, Maryland, and the District of Columbia. The stock gets F’s in Cash Flow and Sales Growth. As of Jan. 18, 2013, 10.4% of outstanding Pepco Holdings shares were held short. To get an in-depth look at POM, get Portfolio Grader’s complete analysis of POM stock.

This week, Southern Co. (NYSE:SO) drops from C to a D rating. Southern Company provides electric service in the Southeastern United States. For a full analysis of SO stock, visit Portfolio Grader.

Entergy (NYSE:ETR) earns an F (“strong sell”) this week, moving down from last week’s grade of D (“sell”). Entergy is an integrated energy company that is primarily focused on electric power production and retail electric distribution operations. The stock gets F’s in Cash Flow and Sales Growth. For more information, get Portfolio Grader’s complete analysis of ETR 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.