This week, the overall grades of three commercial services stocks are lower, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

SP Plus Corporation (SP) is on the decline this week, earning a D (“sell”) after receiving a C (“hold”) last week. For Portfolio Grader’s specific subcategory of Earnings Momentum, SP also gets an F. The stock currently has a trailing PE Ratio of 26.90. To get an in-depth look at SP, get Portfolio Grader’s complete analysis of SP stock.

Quad/Graphics, Inc. Class A (QUAD) earns a D this week, moving down from last week’s grade of C. Quad/Graphics is a commercial printing company with image centers and photography studios nationwide and plants across the country. The stock also gets an F in Earnings Momentum. For more information, get Portfolio Grader’s complete analysis of QUAD stock.

Cypress Energy Partners LP (CELP) is having a tough week. The company’s rating falls from a C to a D. The stock gets F’s in Earnings Revisions, Earnings Surprise and Sales Growth. The stock has a trailing PE Ratio of 26.90. To get an in-depth look at CELP, get Portfolio Grader’s complete analysis of CELP 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.