The overall ratings of 5 Media stocks are down on Portfolio Grader this week. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This week, Scholastic Corporation’s (SCHL) rating worsens to a D from the company’s C rating a week ago. Scholastic Corporation publishes and distributes children’s books. For more information, get Portfolio Grader’s complete analysis of SCHL stock.

Tribune Media Co. Class A (TRCO) earns a F this week, moving down from last week’s grade of D. The company also gets F’s in operating margin growth, earnings surprise, earnings momentum, and free cash flow. For more information, get Portfolio Grader’s complete analysis of TRCO stock.

Liberty Global Plc Class A’s (LBTYA) rating weakens this week, dropping to a F versus last week’s D. Liberty Global Plc Class A owns interests in broadband, distribution, and content companies operating outside the continental United States, principally in Europe, Asia, and Latin America. The company also gets F’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of LBTYA stock.

Cinemark Holdings, Inc. (CNK) is having a tough week. The company’s rating falls from a C to a D. Cinemark Holdings, Inc. is engaged in the motion picture exhibition industry, and own theatres internationally. For more information, get Portfolio Grader’s complete analysis of CNK stock.

Slipping from a C to a D rating, Radio One, Inc. Class D (ROIAK) takes a hit this week. Radio One, Inc. Class D is a radio broadcasting company primarily targeting African Americans. The company also gets F’s in free cash flow. For more information, get Portfolio Grader’s complete analysis of ROIAK 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.