3 IT Services stocks are moving up in their overall rating this week, according to the Portfolio Grader database. Every one of these is graded an “A” (“strong buy”) or “B” overall (“buy”).

CoreLogic, Inc. (CLGX) shows solid improvement this week. The company’s rating rises from a C to a B. CoreLogic, Inc. provides property, financial, and consumer information, analytics, and services for businesses and government entities, including financial institutions and mortgage originators and servicers. The company also gets A’s in operating margin growth. For more information, get Portfolio Grader’s complete analysis of CLGX stock.

This week, Computer Sciences Corporation’s (CSC) ratings are up from a B last week to a A. Computer Sciences Corporation offers services to clients in the commercial and government markets. The company also gets A’s in earnings momentum and free cash flow. For more information, get Portfolio Grader’s complete analysis of CSC stock.

This is a strong week for NeuStar, Inc. Class A (NSR). The company’s rating climbs to B from the previous week’s C. NeuStar, Inc. Class A provides the North American communications industry with clearinghouse services. The company also gets A’s in earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of NSR 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.