The grades of three distributors stocks are better this week, according to the Portfolio Grader database. Every one of these stocks has an “A” (“strong buy”) or “B” overall (“buy”) rating.

Edgen Group Inc. Class A (EDG) is bettering its rating of C (“hold”) from last week to a B (“buy”) this week. In Portfolio Grader’s specific subcategory of Equity, EDG also gets an A. For more information, get Portfolio Grader’s complete analysis of EDG stock.

This week, United Rentals, Inc.’s (URI) ratings are up from a C last week to a B. United Rentals is an equipment rental company that serves construction and industrial companies, manufacturers, utilities, municipalities, homeowners, and government entities. Shares of URI have increased 10.4% over the past month, better than the 1.7% decrease the S&P 500 has seen over the same period of time. For more information, get Portfolio Grader’s complete analysis of URI stock.

Aircastle Limited (AYR) boosts its rating from a C to a B this week. Aircastle is engaged in acquiring, leasing, and selling commercial jet aircrafts to passenger and cargo airlines throughout the world. The stock price has pushed upwards for the past four days, reaching $19.55. For more information, get Portfolio Grader’s complete analysis of AYR 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.