This week, 3 IT Services stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

Computer Sciences Corporation (CSC) shows solid improvement this week. The company’s rating rises from a C to a B. Computer Sciences Corporation offers services to clients in the commercial and government markets. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of CSC stock.

CGI Group Inc. Class A (GIB) boosts its rating from a C to a B this week. CGI Group Inc. Class A manages information technology services (IT services), including outsourcing, systems integration and consulting, software licenses and maintenance, as well as business process services (BPS) to help clients cost effectively realize their strategies and create added value. The company also gets A’s in return on equity and free cash flow. For more information, get Portfolio Grader’s complete analysis of GIB stock.

CSG Systems International, Inc.’s (CSGS) ratings are looking better this week, moving up to a A from last week’s B. CSG Systems International, Inc. provides business support solutions primarily to the communications industry. The company also gets A’s in earnings growth, earnings revisions, earnings surprise, earnings momentum, and return on equity. For more information, get Portfolio Grader’s complete analysis of CSGS 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.