The ratings of 4 Trading Companies & Distributors stocks are down this week, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

HD Supply Holdings, Inc. (HDS) declines this week from a C to a D. The company also gets F’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of HDS stock.

Aircastle Limited (AYR) slips from a C to a D this week. Aircastle Limited is engaged in acquiring, leasing, and selling commercial jet aircrafts to passenger and cargo airlines throughout the world. The company also gets F’s in earnings surprise and free cash flow. For more information, get Portfolio Grader’s complete analysis of AYR stock.

This week, Titan Machinery Inc. (TITN) drops from a C to a D rating. Titan Machinery Inc. owns and operates networks of full service agricultural and construction equipment stores. The company also gets F’s in sales growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of TITN stock.

This is a rough week for MFC Bancorp Ltd. (MFCB). The company’s rating falls to F from the previous week’s D. The company also gets F’s in sales growth, operating margin growth, earnings growth, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of MFCB 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.