This week, the ratings of 4 IT Services stocks on Portfolio Grader are down. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

Alliance Data Systems Corporation (ADS) is having a tough week. The company’s rating falls from a C to a D. Alliance Data Systems Corporation offers a portfolio of integrated outsourced marketing solutions. For more information, get Portfolio Grader’s complete analysis of ADS stock.

StarTek, Inc. (SRT) experiences a ratings drop this week, going from last week’s C to a D. StarTek, Inc. provides business process outsourcing services to the communications industry. The company also gets F’s in return on equity and free cash flow. For more information, get Portfolio Grader’s complete analysis of SRT stock.

Innodata Inc.’s (INOD) rating weakens this week, dropping to a D versus last week’s C. Innodata Inc. provides services, products and solutions that their clients use to create, manage and distribute digital information. The company also gets F’s in operating margin growth. For more information, get Portfolio Grader’s complete analysis of INOD stock.

Payment Data Systems, Inc. (PYDS) declines this week from a C to a D. The company also gets F’s in earnings growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of PYDS 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.