The grades of 4 Auto Components stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

Fox Factory Holding Corp. (FOXF) shows solid improvement this week. The company’s rating rises from a B to a A. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of FOXF stock.

Horizon Global Corp. (HZN) boosts its rating from a B to a A this week. The company also gets A’s in operating margin growth, earnings growth, earnings revisions, earnings surprise, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of HZN stock.

Modine Manufacturing Company (MOD) is seeing ratings go up from a C last week to a B this week. Modine Manufacturing Company specializes in thermal management systems and components, bringing heating and cooling technology and solutions to diversified global markets. The company also gets A’s in earnings growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of MOD stock.

The rating of Workhorse Group Inc. (WKHS) moves up this week, rising from a B to a A. The company also gets A’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of WKHS 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.