3 Diversified Consumer 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”).

This week, Tarena International, Inc. Sponsored ADR Class A (TEDU) pushes up from a C to a A rating. The company also gets A’s in sales growth and earnings growth. For more information, get Portfolio Grader’s complete analysis of TEDU stock.

This week, China Distance Education Holdings Ltd. Sponsored ADR’s (DL) ratings are up from a C last week to a B. China Distance Education Holdings Ltd. Sponsored ADR provides online and offline education services, and sells related products in the People’’s Republic of China. The company also gets A’s in earnings growth, earnings surprise, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of DL stock.

This is a strong week for ATA, Inc. Sponsored ADR (ATAI). The company’s rating climbs to A from the previous week’s B. ATA, Inc. Sponsored ADR offers services for the creation and delivery of computer-based tests based on its proprietary testing technologies and test delivery platform. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of ATAI 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.