This week, four road and rail stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

RailAmerica (RA) is making headway this week, with the company’s rating improving to an A (“strong buy”) from a B (“buy”) last week. RailAmerica owns and operates short-line and regional freight railroads in North America. For more information, get Portfolio Grader’s complete analysis of RA stock.

Vitran Corporation Inc. (VTNC) is bettering its rating of C (“hold”) from last week to a B (“buy”) this week. Vitran provides freight surface transportation and related supply chain services in Canada and the United States. For more information, get Portfolio Grader’s complete analysis of VTNC stock.

Guangshen Railway Co. Ltd. Sponsored ADR Class H’s (GSH) ratings are looking better this week, moving up to a B from last week’s C. Guangshen Railway is a provider of railroad passenger and freight transportation, as well as railway network usage and services. For more information, get Portfolio Grader’s complete analysis of GSH stock.

The rating of J.B. Hunt Transport Services, Inc. (JBHT) moves up this week, rising from a C to a B. J.B. Hunt Transport Services provides transportation and logistics services in the United States, Canada, and Mexico. Shares of the stock have been trading at an exceptionally rapid pace, up threefold from the week prior. For more information, get Portfolio Grader’s complete analysis of JBHT 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.