The grades of 4 IT Services stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

This is a strong week for Broadridge Financial Solutions, Inc. (BR). The company’s rating climbs to A from the previous week’s B. Broadridge Financial Solutions, Inc. provides investor communication, securities processing, and clearing and outsourcing solutions to the financial services industry. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of BR stock.

Sabre Corp.’s (SABR) ratings are looking better this week, moving up to a A from last week’s B. The company also gets A’s in operating margin growth, earnings growth, earnings revisions, and return on equity. For more information, get Portfolio Grader’s complete analysis of SABR stock.

ServiceSource International, Inc. (SREV) boosts its rating from a C to a B this week. ServiceSource International, Inc. helps hardware, software, healthcare, and life sciences companies derive from their customers more revenue from maintenance, support and subscription agreements. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of SREV stock.

Higher One Holdings, Inc. (ONE) gets a higher grade this week, advancing from a C last week to a B. Higher One Holdings, Inc. provides technology and payment services to the higher education industry as well as student-oriented banking services on campus communities. The company also gets A’s in free cash flow. For more information, get Portfolio Grader’s complete analysis of ONE 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.