This week, the ratings of 4 Semiconductors & Semiconductor Equipment stocks on Portfolio Grader are down. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

Cavium, Inc. (CAVM) is having a tough week. The company’s rating falls from a C to a D. Cavium, Inc. designs, develops and markets semiconductor processors for intelligent and secure networks. For more information, get Portfolio Grader’s complete analysis of CAVM stock.

Power Integrations, Inc. (POWI) experiences a ratings drop this week, going from last week’s C to a D. Power Integrations, Inc. designs, develops, and markets analog integrated circuits for use in alternating current to direct current power conversion. For more information, get Portfolio Grader’s complete analysis of POWI stock.

ARM Holdings plc Sponsored ADR (ARMH) slips from a C to a D this week. ARM Holdings plc Sponsored ADR engages in the design of microprocessors, physical IP, and related technology and software; and sale of development tools to enhance the performance of high-volume embedded applications. For more information, get Portfolio Grader’s complete analysis of ARMH stock.

inTEST Corporation’s (INTT) rating weakens this week, dropping to a D versus last week’s C. InTEST Corporation is an independent designer, manufacturer and marketer of manipulator and docking hardware products, temperature management systems and tester interface products that are used by semiconductor manufacturers in conjunction with automatic test equipment in the testing of integrated circuits. The company also gets F’s in sales growth, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of INTT 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.