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) ups its rating to a B (“buy”) this week after earning a C (“hold”) in the week before. 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.

United Rentals, Inc. (URI) improves from a C to a B rating this week. 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 13.8% 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.

This week, Aircastle Limited’s (AYR) ratings are up from a C last week to a B. Aircastle is engaged in acquiring, leasing, and selling commercial jet aircrafts to passenger and cargo airlines throughout the world. At $19.33, the stock is above the 50-day moving average of $18.83. 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.