5 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”).

International Business Machines Corporation (IBM) improves from a C to a B rating this week. International Business Machines Corporation provides computer solutions through the use of advanced information technology. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of IBM stock.

This week, WEX Inc.’s (WEX) ratings are up from a C last week to a B. WEX Inc. provides payment processing and information management services to the United States commercial and government vehicle fleet industry. For more information, get Portfolio Grader’s complete analysis of WEX stock.

PayPal Holdings Inc (PYPL) gets a higher grade this week, advancing from a C last week to a B. For more information, get Portfolio Grader’s complete analysis of PYPL stock.

This is a strong week for StarTek, Inc. (SRT). The company’s rating climbs to A from the previous week’s B. StarTek, Inc. provides business process outsourcing services to the communications industry. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of SRT stock.

Planet Payment, Inc. (PLPM) earns a B this week, jumping up from last week’s grade of C. Planet Payment, Inc. provides international payment processing and multi-currency processing services. The company also gets A’s in operating margin growth, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of PLPM 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.