The grades of five semiconductor stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

This week, M/A-COM Technology Solutions Holdings, Inc. (MTSI) is showing good progress as the company’s rating jumps from a B (“buy”) last week to an A (“strong buy”). 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) is seeing ratings go up from a B last week to an A 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.

CVD Equipment Corporation’s (CVV) grade is moving up to a B (“buy”) this week from last week’s C (“hold”). CVD Equipment develops, manufactures, and markets chemical vapor deposition equipment, annealing furnaces, and etching systems. Shares of the stock have been changing hands at an unusually rapid pace, twice the rate of the week prior. For more information, get Portfolio Grader’s complete analysis of CVV stock.

FormFactor, Inc. (FORM) shows solid improvement this week. The company’s rating rises from a C to a B. FormFactor designs, develops, and manufactures advanced semiconductor wafer probe cards. For more information, get Portfolio Grader’s complete analysis of FORM stock.

Semiconductor Manufacturing International Corp. Sponsored ADR (SMI) earns a B this week, jumping up from last week’s grade of C. Semiconductor Manufacturing International manufactures, trades, packages, tests, and provides computer-aided design integrated circuits. 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 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.