This week, the overall grades of 4 Commercial Services & Supplies stocks are lower, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

US Ecology, Inc. (ECOL) gets weaker ratings this week as last week’s C drops to a D. US Ecology, Inc. provides radioactive, hazardous, polychlorinated biphenyls and non-hazardous industrial waste management and recycling services to commercial and government entities, such as refineries and chemical production facilities. The company also gets F’s in sales growth, operating margin growth, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of ECOL stock.

Atento SA (ATTO) experiences a ratings drop this week, going from last week’s C to a D. The company also gets F’s in sales growth. For more information, get Portfolio Grader’s complete analysis of ATTO stock.

Pointer Telocation Ltd.’s (PNTR) rating weakens this week, dropping to a D versus last week’s C. Pointer Telocation Ltd. provides mobile resource management products and services for the automotive and insurance industries. The company also gets F’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of PNTR stock.

Intersections Inc. (INTX) is having a tough week. The company’s rating falls from a C to a D. Intersections Inc. provides credit management and identity theft protection solutions to the consumer and small business markets on a subscription basis. The company also gets F’s in sales growth, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of INTX 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.