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

Arlington Asset Investment Corp. Class A (AI) invests on a leveraged basis in residential mortgage-backed securities, including collateralized mortgage obligations. The company also gets F’s in operating margin growth and earnings revisions. For more information, get Portfolio Grader’s complete analysis of AI stock.

RELX NV Sponsored ADR. The company also gets F’s in operating margin growth. For more information, get Portfolio Grader’s complete analysis of RENX stock.

PennyMac Mortgage Investment Trust (PMT) is a specialty finance company that invests primarily in residential mortgage loans and mortgage-related assets. The company also gets F’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of PMT stock.

Community Trust Bancorp, Inc. (CTBI) is engaged in a range of commercial and personal banking and trust activities. For more information, get Portfolio Grader’s complete analysis of CTBI stock.

LSI Industries Inc. (LYTS) designs, manufactures, and markets a variety of lighting fixtures, menu board systems, and graphic products. The company also gets F’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of LYTS 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.