4 Communications Equipment stocks are moving up in their overall rating this week, according to the Portfolio Grader database. Every one of these is graded an “A” (“strong buy”) or “B” overall (“buy”).

InterDigital, Inc.’s (IDCC) ratings are looking better this week, moving up to a B from last week’s C. InterDigital, Inc. develops technology for advanced digital wireless telecommunications applications. The company also gets A’s in earnings momentum, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of IDCC stock.

This is a strong week for Silicom Ltd. (SILC). The company’s rating climbs to A from the previous week’s B. Silicom Ltd. designs, manufactures, markets, and supports Multi-Port Gigabit-Ethernet Server Adapters. The company also gets A’s in sales growth, earnings growth, earnings revisions, earnings surprise, and free cash flow. For more information, get Portfolio Grader’s complete analysis of SILC stock.

This week, Cisco Systems, Inc.’s (CSCO) ratings are up from a C last week to a B. Cisco Systems, Inc. sells networking and communications products, and is engaged in the design, manufacturing, and sales of Internet Protocol-based consumer electronics. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of CSCO stock.

This week, Clearfield, Inc. (CLFD) pushes up from a C to a B rating. Clearfield, Inc. offers telecommunications equipment and products in the United States. The company also gets A’s in sales growth, operating margin growth, earnings growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of CLFD 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.