This week, the ratings of 5 Internet Software & Services stocks on Portfolio Grader are down. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

CoStar Group, Inc. (CSGP) experiences a ratings drop this week, going from last week’s C to a D. CoStar Group, Inc. provides information and analytic services to the commercial real estate industry in the United States, the United Kingdom, and France. For more information, get Portfolio Grader’s complete analysis of CSGP stock.

This is a rough week for 58.com Inc. Sponsored ADR Class A (WUBA). The company’s rating falls to D from the previous week’s C. For more information, get Portfolio Grader’s complete analysis of WUBA stock.

Global Sources Ltd. (GSOL) declines this week from a C to a D. Global Sources Ltd. operates as a business-to-business media company primarily in greater China. For more information, get Portfolio Grader’s complete analysis of GSOL stock.

This week, DHI Group, Inc.’s (DHX) rating worsens to a F from the company’s C rating a week ago. DHI Group, Inc. provides specialized career Websites and career fairs for professional communities. The company also gets F’s in sales growth, operating margin growth, and earnings revisions. For more information, get Portfolio Grader’s complete analysis of DHX stock.

Great Elm Capital Group, Inc. (GEC) slips from a D to a F this week. The company also gets F’s in sales growth, earnings momentum, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of GEC 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.