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

HudBay Minerals (NYSE:HBM) is a mining company that mines and produces zinc, copper, gold, and silver. HBM also gets F’s in Earnings Growth, Analyst Earnings Revisions, Earnings Surprises, Cash Flow, Operating Margin Growth, and Sales Growth. Shares of the stock have declined 7.3% since January 1. This is worse than the S&P 500, which has seen a 10.6% increase over the same period. For more information, get Portfolio Grader’s complete analysis of HBM stock.

Pendrell Corp. (NASDAQ:PCO) provides corporate intellectual property solutions and litigation insights to Fortune 500 companies. PCO also gets an F in Earnings Growth. The price of PCO is down 56.6% since the first of the year. For more information, get Portfolio Grader’s complete analysis of PCO stock.

United Community Banks (NASDAQ:UCBI) provides retail and corporate banking services, including deposit products and loans. UCBI gets F’s in Earnings Growth, Analyst Earnings Revisions, and Earnings Surprises as well. For more information, get Portfolio Grader’s complete analysis of UCBI stock.

Alon Holdings (NYSE:BSI) operates supermarkets and retail outlets in Israel. BSI also gets F’s in Earnings Growth, Cash Flow, and Operating Margin Growth. Shares of the stock have declined 33.8% since January 1. For more information, get Portfolio Grader’s complete analysis of BSI stock.

Leap Wireless (NASDAQ:LEAP) provides mobile wireless services. LEAP gets F’s in Equity and Cash Flow as well. Since January 1, LEAP has fallen 43.6%. For more information, get Portfolio Grader’s complete analysis of LEAP 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.