This week, 3 Communications Equipment stocks are improving their overall rating on Portfolio Grader. Each of these rates an “A” (“strong buy”) or “B” overall (“buy”).

InterDigital, Inc. (IDCC) improves from a C to a B rating this week. 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.

Cisco Systems, Inc. (CSCO) earns a B this week, jumping up from last week’s grade of C. 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, BOS Better Online Solutions Ltd. (BOSC) pushes up from a C to a B rating. BOS Better Online Solutions Ltd. provides radio frequency identification (RFID) and mobile solutions, and supply chain solutions primarily in the United States, the Far East, Europe, and Israel. The company also gets A’s in free cash flow. For more information, get Portfolio Grader’s complete analysis of BOSC 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.