The overall ratings of 3 Communications Equipment stocks are down on Portfolio Grader this week. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

ARRIS International Plc (ARRS) is having a tough week. The company’s rating falls from a C to a D. ARRIS International Plc is a global communications technology company specializing in the design and engineering of broadband network solutions. The company also gets F’s in sales growth, operating margin growth, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of ARRS stock.

This week, TESSCO Technologies Incorporated’s (TESS) rating worsens to a D from the company’s C rating a week ago. TESSCO Technologies Incorporated provides professionals that design, build, run, maintain and use wireless mobile, fixed and in-building systems with integrated product and supply chain solutions. The company also gets F’s in earnings revisions. For more information, get Portfolio Grader’s complete analysis of TESS stock.

Slipping from a C to a D rating, UTStarcom Holdings Corp. (UTSI) takes a hit this week. UTStarcom Holdings Corp. provides communications equipment for service providers that operate wireless and wireline networks. The company also gets F’s in sales growth, earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of UTSI 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.