For the current week, the overall ratings of three Construction and Engineering stocks are worse, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This week, Fluor (NYSE:FLR) falls to a D (“sell”), worse than last week’s grade of C (“hold”). Fluor Corporation provides professional services in the fields of engineering, procurement, construction and maintenance as well as project management services on a global basis. FLR also rates an F in Portfolio Grader’s specific subcategory of Earnings Growth. To get an in-depth look at FLR, get Portfolio Grader’s complete analysis of FLR stock.

Foster Wheeler (NASDAQ:FWLT) earns a D this week, falling from last week’s grade of C. Foster Wheeler AG provides design, engineering, construction, manufacturing, project development and management, research, plant operations, and environmental services. The stock also gets an F in Sales Growth. The stock price has dropped 8.8% over the past month, worse than the 2.8% increase the Nasdaq has seen over the same period of time. For more information, get Portfolio Grader’s complete analysis of FWLT stock.

Sterling Construction (NASDAQ:STRL) is having a tough week. The company’s rating falls from C to a D. Sterling Instruction Company is a heavy civil construction company that specializes in the building, reconstruction and repair of transportation and water infrastructure. For a full analysis of STRL stock, visit Portfolio Grader.

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.