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

Glu Mobile Inc. (GLUU) develops and publishes mobile games on a global basis. The company also gets F’s in operating margin growth, earnings growth, and earnings revisions. For more information, get Portfolio Grader’s complete analysis of GLUU stock.

RealD Inc. (RLD) is a global licensor of 3D technologies. The company also gets F’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of RLD stock.

Cenovus Energy Inc. (CVE) operates in oil projects and in the production of natural gas and crude oil. The company also gets F’s in sales growth and earnings revisions. For more information, get Portfolio Grader’s complete analysis of CVE stock.

Apache Corporation (APA) is an energy company that discovers, develops and produces natural gas, crude oil and natural gas liquids. The company also gets F’s in sales growth, operating margin growth, earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of APA stock.

Encana Corporation (ECA) provides energy transportation, distribution, and related services in North America and internationally. The company also gets F’s in sales growth, operating margin growth, earnings growth, earnings revisions, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of ECA 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.