This week, these five stocks have the worst ratings in Earnings Momentum, one of the eight Fundamental Categories on Portfolio Grader.

FNB United (FNBN) is a bank holding company. FNBN gets F’s in Equity and Cash Flow as well. For more information, get Portfolio Grader’s complete analysis of FNBN stock.

American Capital Mortgage Investment Corp. (MTGE) invests in, finances, and manages a portfolio of mortgage-related investments, such as agency mortgage investments, non-agency mortgage investments and other mortgage-related investments. MTGE also gets F’s in Earnings Growth, Earnings Surprises, Cash Flow, Operating Margin Growth and Sales Growth. The stock’s trailing PE Ratio is 118.20. For more information, get Portfolio Grader’s complete analysis of MTGE stock.

Mellanox Technologies, Ltd. (MLNX) designs and develops semiconductor-based, high-performance interconnect products. MLNX gets F’s in Earnings Growth, Analyst Earnings Revisions, Earnings Surprises, Operating Margin Growth and Sales Growth as well. The stock has a trailing PE Ratio of 795.60. For more information, get Portfolio Grader’s complete analysis of MLNX stock.

The Phoenix Companies, Inc. (PNX) is the holding company of Phoenix Life Insurance Company. PNX also gets F’s in Earnings Growth and Sales Growth. For more information, get Portfolio Grader’s complete analysis of PNX stock.

Sears Holdings Corporation (SHLD) is a retail conglomerate with full-line and specialty retail stores. SHLD gets F’s in Equity, Cash Flow and Sales Growth as well. For more information, get Portfolio Grader’s complete analysis of SHLD 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.