The grades of four 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.

FSI International (NASDAQ:FSII) is making headway this week, with the company’s rating improving to an A (“strong buy”) from a B (“buy”) last week. 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 Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored ADR (NYSE:TSM) moves up this week, rising from a B 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.

This is a strong week for Himax Technologies, Inc. Sponsored ADR (NASDAQ:HIMX). The company’s rating climbs to A from the previous week’s B. Himax Technologies designs and manufactures integrated circuits. For more information, get Portfolio Grader’s complete analysis of HIMX stock.

Daqo New Energy Corp. Sponsored ADR’s (NYSE:DQ) ratings are looking better this week, moving up to an A from last week’s B. Daqo New Energy engages in manufacturing polycrystalline silicon, which are used for producing ingots, wafers, cells, and modules for photovoltaic solar power solutions. For more information, get Portfolio Grader’s complete analysis of DQ 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.