For the current week, the overall ratings of three Diversified Telecommunication Services stocks are worse, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

Consolidated Communications‘ (NASDAQ:CNSL) rating falls to a D (“sell”) this week, down from C (“hold”) the week prior. Consolidated Communications operates as a rural local exchange company that provides communications services to residential and business customers in Illinois, Texas, and Pennsylvania. In Portfolio Grader’s specific subcategories of Earnings Growth, Earnings Revisions, and Earnings Surprise, CNSL also gets an F. The stock has a trailing PE Ratio of 26.5. For more information, get Portfolio Grader’s complete analysis of CNSL stock.

Slipping from a C to a D rating, Inteliquent (NASDAQ:IQNT) takes a hit this week. Inteliquent provides tandem interconnection services to competitive carriers, including wireless, wireline, cable telephony and Voice over Internet Protocol companies. The stock gets F’s in Earnings Revisions and Earnings Surprise. The stock price has fallen 17.9% over the past month, worse than the 4.8% increase the Nasdaq has seen over the same period of time. To get an in-depth look at IQNT, get Portfolio Grader’s complete analysis of IQNT stock.

This week, KT Corp.‘s (NYSE:KT) rating worsens to a D from the company’s C rating a week ago. KT provides telecommunication services including local, long distance, and international calling, satellite communication, data transmission, and wireless telephone services in South Korea. For a full analysis of KT stock, visit Portfolio Grader.

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.