This week, five semiconductor stocks are improving their overall rating on Portfolio Grader. Each of these rates an “A” (“strong buy”) or “B” overall (“buy”).

M/A-COM Technology Solutions Holdings, Inc. (MTSI) is progressing from last week’s rating of B (“buy”) as the company improves to an A (“strong buy”) this 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.

FSI International (FSII) improves from a B to an A rating this week. 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.

This week, FormFactor, Inc. (FORM) pushes up from a C to a B rating. FormFactor designs, develops, and manufactures advanced semiconductor wafer probe cards. Shares of the stock have been changing hands at an unusually rapid pace, up 442.8% from the week prior. For more information, get Portfolio Grader’s complete analysis of FORM stock.

Semiconductor Manufacturing International Corp. Sponsored ADR (SMI) shows solid improvement this week. The company’s rating rises from a C 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.