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

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. For more information, get Portfolio Grader’s complete analysis of INTT stock.

Pixelworks, Inc. (PXLW) gets weaker ratings this week as last week’s C drops to a D. Pixelworks, Inc. designs and develops system-on-a-chip solutions. The company also gets F’s in return on equity and free cash flow. For more information, get Portfolio Grader’s complete analysis of PXLW stock.

AXT, Inc. (AXTI) is having a tough week. The company’s rating falls from a C to a D. AXT, Inc. designs, develops, manufactures, and distributes compound and single element semiconductor substrates for use in wireless communications, lighting display applications, and fiber optic communications. The company also gets F’s in earnings growth. For more information, get Portfolio Grader’s complete analysis of AXTI 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.