This week, 5 Semiconductors & Semiconductor Equipment stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

NXP Semiconductors NV (NXPI) is seeing ratings go up from a C last week to a B this week. NXP Semiconductors NV provides mixed signal and standard product solutions for radio frequency (RF), analog, power management, interface, security, and digital processing products worldwide. The company also gets A’s in operating margin growth, earnings growth, earnings momentum, and return on equity. For more information, get Portfolio Grader’s complete analysis of NXPI stock.

Hanwha Q CELLS Co., Ltd. Sponsored ADR’s (HQCL) ratings are looking better this week, moving up to a B from last week’s C. The company also gets A’s in sales growth, earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of HQCL stock.

The rating of Mattson Technology, Inc. (MTSN) moves up this week, rising from a C to a B. Mattson Technology, Inc. designs, manufactures, and markets advanced fabrication equipment. The company also gets A’s in operating margin growth, earnings growth, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of MTSN stock.

This week, GigOptix, Inc.’s (GIG) ratings are up from a B last week to a A. GigOptix, Inc. is a fabless semiconductor manufacturer of electronic engines for the optically connected digital world. The company also gets A’s in sales growth. For more information, get Portfolio Grader’s complete analysis of GIG stock.

Actions Semiconductor Co. Ltd. Sponsored ADR (ACTS) earns a B this week, jumping up from last week’s grade of C. Actions Semiconductor Co. Ltd. Sponsored ADR operates as a semiconductor company in the People’s Republic of China. For more information, get Portfolio Grader’s complete analysis of ACTS 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.