This week, the ratings of 4 Machinery stocks on Portfolio Grader are down. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This week, Deere & Company (DE) drops from a C to a D rating. Deere & Company provides products and services for various outdoor markets, including agriculture, forestry, construction, lawn and turf care, landscaping and irrigation. For more information, get Portfolio Grader’s complete analysis of DE stock.

Slipping from a C to a D rating, Hyster-Yale Materials Handling, Inc. Class A (HY) takes a hit this week. For more information, get Portfolio Grader’s complete analysis of HY stock.

Barnes Group Inc. (B) earns a D this week, moving down from last week’s grade of C. Barnes Group Inc. is an international logistical services company and a manufacturer of aerospace and industrial components. For more information, get Portfolio Grader’s complete analysis of B stock.

Federal Signal Corporation (FSS) slips from a C to a D this week. Federal Signal Corporation manufactures and supplies safety, signaling, and communications equipment. The company also gets F’s in sales growth. For more information, get Portfolio Grader’s complete analysis of FSS 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.