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

Great Basin Scientific, Inc.. The company also gets F’s in earnings growth. For more information, get Portfolio Grader’s complete analysis of GBSN stock.

Intelsat S.A.. The company also gets F’s in operating margin growth, earnings revisions, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of I stock.

PetroQuest Energy, Inc. (PQ) explores, develops, acquires, and operates oil and gas properties onshore and offshore in the Gulf Coast Region. The company also gets F’s in sales growth, operating margin growth, earnings growth, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of PQ stock.

BioStar Pharmaceuticals, Inc. (BSPM) develops, manufactures, and markets over-the-counter (OTC) and prescription pharmaceutical products, and health supplement products for various diseases and conditions in the People’s Republic of China. The company also gets F’s in sales growth, operating margin growth, earnings growth, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of BSPM stock.

Altisource Asset Management Corp.. The company also gets F’s in sales growth, operating margin growth, earnings growth, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of AAMC 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.