This week, the overall grades of 3 Commercial Services & Supplies stocks are lower, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This is a rough week for Stericycle, Inc. (SRCL). The company’s rating falls to D from the previous week’s C. Stericycle, Inc. manages regulated waste and provides a variety of related services internationally. For more information, get Portfolio Grader’s complete analysis of SRCL stock.

Team, Inc. (TISI) gets weaker ratings this week as last week’s C drops to a D. Team, Inc. is a provider of specialty maintenance and construction services required in maintaining high temperature and high pressure piping systems and vessels that are utilized in the refining, petrochemical, power, pipeline, and other heavy industries. The company also gets F’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of TISI stock.

This week, Acme United Corporation’s (ACU) rating worsens to a D from the company’s C rating a week ago. Acme United Corporation supplies cutting, measuring, and safety products for the school, home, office, and industrial markets. For more information, get Portfolio Grader’s complete analysis of ACU 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.