The grades of five semiconductor stocks are better this week, according to the Portfolio Grader database. Every one of these stocks has an “A” (“strong buy”) or “B” overall (“buy”) rating.

M/A-COM Technology Solutions Holdings, Inc. (MTSI) is making headway this week, with the company’s rating improving to an A (“strong buy”) from a B (“buy”) last week. M/A-COM Technology Solutions designs, develops, manufactures, and markets semiconductors and modules for use in wireless and wireline applications across the radio frequency, microwave, and millimeterwave spectrum. In Portfolio Grader’s specific subcategories of Earnings Momentum, Earnings Revisions and Sales Growth, MTSI also gets A’s. For more information, get Portfolio Grader’s complete analysis of MTSI stock.

This week, FSI International’s (FSII) ratings are up from a B last week to an A. FSI International is a supplier of processing equipment used at key production steps to manufacture microelectronics, including semiconductor devices and thin film heads. For more information, get Portfolio Grader’s complete analysis of FSII stock.

This week, CVD Equipment Corporation (CVV) is showing significant improvement as the company’s rating hops from a C (“hold”) to a B (“buy”). CVD Equipment develops, manufactures, and markets chemical vapor deposition equipment, annealing furnaces, and etching systems. For more information, get Portfolio Grader’s complete analysis of CVV stock.

FormFactor, Inc. (FORM) improves from a C to a B rating this week. FormFactor designs, develops, and manufactures advanced semiconductor wafer probe cards. Shares of the stock have been trading at an exceptionally rapid pace, up fourfold from the week prior. For more information, get Portfolio Grader’s complete analysis of FORM stock.

Semiconductor Manufacturing International Corp. Sponsored ADR (SMI) gets a higher grade this week, advancing from a C last week to a B. Semiconductor Manufacturing International manufactures, trades, packages, tests, and provides computer-aided design integrated circuits. For more information, get Portfolio Grader’s complete analysis of SMI 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.