This week, 4 IT Services stocks are worse, according to the Portfolio Graderdatabase. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This week, International Business Machines Corporation’s (IBM) rating worsens to a D from the company’s C rating a week ago. International Business Machines Corporation provides computer solutions through the use of advanced information technology. The company also gets F’s in sales growth. For more information, get Portfolio Grader’s complete analysis of IBM stock.

This week, StarTek, Inc. (SRT) drops from a D to a F rating. StarTek, Inc. provides business process outsourcing services to the communications industry. The company also gets F’s in earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of SRT stock.

Information Services Group, Inc. (III) declines this week from a C to a D. Information Services Group, Inc. provides advisory, analytics, strategy, development, negotiation and implementation, enterprise resource planning, and business process transformation support services. For more information, get Portfolio Grader’s complete analysis of III stock.

ModusLink Global Solutions, Inc. (MLNK) is having a tough week. The company’s rating falls from a D to a F. ModusLink Global Solutions, Inc. provides global supply chain management services and solutions. 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 MLNK 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.