Three diversified telecommunication services 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”).

inContact, Inc. (SAAS) is bumping up its rating from a C (“hold”) to a B (“buy”) this week. inContact provides cloud-based contact center software services and network connectivity in the United States. In Portfolio Grader’s specific subcategory of Sales Growth, SAAS also gets an A. Shares of the stock have been trading at an exceptionally rapid pace, up fourfold from the week prior. For more information, get Portfolio Grader’s complete analysis of SAAS stock.

FairPoint Communications, Inc. (FRP) boosts its rating from a C to a B this week. FairPoint Communications provides communications services to residential and business customers. Shares of the stock have been trading at an exceptionally rapid pace, up 392.3% from the week prior. For more information, get Portfolio Grader’s complete analysis of FRP stock.

The rating of Telecom Argentina SA Sponsored ADR (TEO) moves up this week, rising from a C to a B. Telecom Argentina is a provider of integrated communications that offers fixed and mobile telecommunication services. In the past week, trade volume fell significantly to half the previous rate. For more information, get Portfolio Grader’s complete analysis of TEO 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.