The grades of three 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, FSI International (NASDAQ:FSII) is making solid headway. The company’s rating improves to an A (“strong buy”) from last week’s B (“buy”) rating. FSI International is a supplier of processing equipment used at key production steps to manufacture microelectronics, including semiconductor devices and thin film heads. In Portfolio Grader’s specific subcategories of Earnings Growth, Earnings Momentum, and Sales Growth, FSII also gets A’s. For more information, get Portfolio Grader’s complete analysis of FSII stock.

The rating of Himax Technologies (NASDAQ:HIMX) moves up this week, rising from a B to an A. Himax Technologies designs and manufactures integrated circuits. Shares of HIMX have increased 20.7% over the past month, better than the 3% increase the Nasdaq has seen over the same period of time. For more information, get Portfolio Grader’s complete analysis of HIMX stock.

This week, Taiwan Semiconductor Manufacturing’s (NYSE:TSM) ratings are up from a B last week to an A. Taiwan Semiconductor Manufacturing makes semiconductors based on its own or third-party proprietary integrated circuit designs. For more information, get Portfolio Grader’s complete analysis of TSM 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.