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

Cleantech Solutions International, Inc. (CLNT) primarily manufactures precision forged components. The company also gets A’s in. For more information, get Portfolio Grader’s complete analysis of CLNT stock.

Ambac Financial Group, Inc.. The company also gets A’s in operating margin growth and earnings surprise. For more information, get Portfolio Grader’s complete analysis of AMBC stock.

Grupo Aval Acciones y Valores Grupo Sponsored ADR Pfd. The company also gets A’s in. For more information, get Portfolio Grader’s complete analysis of AVAL stock.

Companhia Energetica de Minas Gerais SA Sponsored ADR Pfd (CIG) is engaged in the electric power transmission business, which consists of transporting electric power from the facilities where it is generated to the distribution networks for delivery to end users. The company also gets A’s in. For more information, get Portfolio Grader’s complete analysis of CIG stock.

Lee Enterprises, Incorporated (LEE) owns various daily newspapers and a joint interest in several others. The company also gets A’s in operating margin growth and earnings revisions. For more information, get Portfolio Grader’s complete analysis of LEE 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.