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

SAExploration Holdings, Inc. (SAEX) offers a full range of seismic data services including surveying, program design, logistical support, data acquisition, processing, camp services, catering, environmental assessment, and community relations. The company also gets F’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of SAEX stock.

Liberty Interactive Corporation Ventures Series A. The company also gets F’s in sales growth, earnings revisions, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of LVNTA stock.

Genco Shipping & Trading Ltd (GNK) provides shipping services. The company also gets F’s in sales growth, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of GNK stock.

Global Partners LP (GLP) owns, controls or has access to a terminal network of refined petroleum products in New England. The company also gets F’s in sales growth, operating margin growth, earnings growth, earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of GLP stock.

Independence Realty Trust, Inc.. The company also gets F’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of IRT 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.