The overall ratings of four distributors stocks are down on Portfolio Grader this week. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

Textainer Group Holdings Limited (TGH) is on the decline this week, earning a D (“sell”) after receiving a C (“hold”) last week. Textainer Group Holdings operates as a lessor of intermodal containers. For Portfolio Grader’s specific subcategory of Cash Flow, TGH also gets an F. For more information, get Portfolio Grader’s complete analysis of TGH stock.

Fastenal Company (FAST) experiences a ratings drop this week, going from last week’s C to a D. Fastenal sells industrial and construction supplies in a wholesale and retail fashion. As of Feb. 9, 2015, 11.1% of outstanding Fastenal Company shares were held short. The stock has a trailing PE Ratio of 27.60. To get an in-depth look at FAST, get Portfolio Grader’s complete analysis of FAST stock.

The rating of W.W. Grainger, Inc. (GWW) slips from a C to a D. W.W. Grainger is a distributor of facilities maintenance products and provides services and related information used by businesses and institutions throughout North America. For more information, get Portfolio Grader’s complete analysis of GWW stock.

This week, GATX Corporation (GMT) drops from a C to a D rating. GATX is a specialized finance and leasing company focusing on the rail, marine and other targeted assets. The stock also gets an F in Cash Flow. To get an in-depth look at GMT, get Portfolio Grader’s complete analysis of GMT 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.