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

Kensey Nash (KNSY) develops, manufactures, and processes resorbable biomaterials products. KNSY also gets an A in Operating Margin Growth. For more information, get Portfolio Grader’s complete analysis of KNSY stock.

Renewable Energy Group, Inc. (REGI) engages in the production, marketing and distribution of biodiesel and its co-products in the United States. REGI gets A’s in Analyst Earnings Revisions, Earnings Surprises, Equity, Cash Flow and Sales Growth as well. The stock’s current trailing PE Ratio is 2.50. For more information, get Portfolio Grader’s complete analysis of REGI stock.

China Digital TV Holding Co., Ltd. Sponsored ADR (STV) provides conditional access (CA) systems to the digital television market in the People’s Republic of China. STV also gets A’s in Equity, Cash Flow and Operating Margin Growth. The stock currently has a trailing PE Ratio of 7.40. For more information, get Portfolio Grader’s complete analysis of STV stock.

Fuel Tech, Inc. (FTEK) develops and commercializes air pollution control technologies and provides engineering services. FTEK also gets A’s in Earnings Growth, Analyst Earnings Revisions, Earnings Surprises and Sales Growth. For more information, get Portfolio Grader’s complete analysis of FTEK stock.

Edwards Group Ltd. ADR (EVAC) is an industrial technology company that manufactures and sells vacuum products and abatement systems. EVAC also gets A’s in Earnings Growth, Analyst Earnings Revisions, Earnings Surprises, Cash Flow and Sales Growth. For more information, get Portfolio Grader’s complete analysis of EVAC 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.