This week, four distributors stocks are improving their overall rating on Portfolio Grader. Each of these rates an “A” (“strong buy”) or “B” overall (“buy”).

Edgen Group Inc. Class A’s (EDG) grade is moving up to a B (“buy”) this week from last week’s C (“hold”). Edgen Group is a holding company which distributes specialty products to the energy sector. 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.

Aircastle Limited (AYR) improves from a C to a B rating this week. Aircastle is engaged in acquiring, leasing, and selling commercial jet aircrafts to passenger and cargo airlines throughout the world. For more information, get Portfolio Grader’s complete analysis of AYR stock.

This is a strong week for United Rentals, Inc. (URI). The company’s rating climbs to B from the previous week’s C. United Rentals is an equipment rental company that serves construction and industrial companies, manufacturers, utilities, municipalities, homeowners, and government entities. For more information, get Portfolio Grader’s complete analysis of URI stock.

HD Supply Holdings, Inc.’s (HDS) ratings are looking better this week, moving up to a B from last week’s C. For more information, get Portfolio Grader’s complete analysis of HDS 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.