This week, 7 Software stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

This week, Open Text Corporation (OTEX) pushes up from a B to a A rating. Open Text Corporation provides intranet, extranet, and corporate portal solutions to organizations located throughout the world. The company also gets A’s in earnings growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of OTEX stock.

Synopsys, Inc. (SNPS) improves from a C to a B rating this week. Synopsys, Inc. is engaged in the electronic design automation software and related services for semiconductor design companies. For more information, get Portfolio Grader’s complete analysis of SNPS stock.

Take-Two Interactive Software, Inc. (TTWO) is seeing ratings go up from a B last week to a A this week. Take-Two Interactive Software, Inc. publishes, develops and distributes interactive entertainment software and hardware. The company also gets A’s in earnings surprise and earnings momentum. For more information, get Portfolio Grader’s complete analysis of TTWO stock.

Silver Spring Networks, Inc. (SSNI) shows solid improvement this week. The company’s rating rises from a C to a B. The company also gets A’s in sales growth, earnings growth, and free cash flow. For more information, get Portfolio Grader’s complete analysis of SSNI stock.

This week, American Software, Inc. Class A’s (AMSWA) ratings are up from a C last week to a B. American Software, Inc. Class A is involved in the development, marketing, and support of various software and services that deliver enterprise management and collaborative supply chain solutions to the global marketplace. For more information, get Portfolio Grader’s complete analysis of AMSWA stock.

VirnetX Holding Corporation (VHC) gets a higher grade this week, advancing from a C last week to a B. VirnetX Holding Corporation is engaged in the business of commercializing a portfolio of patents. For more information, get Portfolio Grader’s complete analysis of VHC stock.

This is a strong week for Voltari Corp. (VLTC). The company’s rating climbs to B from the previous week’s C. Voltari Corp. provides mobile data solutions to wireless service carriers. For more information, get Portfolio Grader’s complete analysis of VLTC 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.