The grades of 9 Software stocks are better this week, according to the Portfolio Grader database. Every one of these stocks has an “A” (“strong buy”) or “B” overall (“buy”) rating.

NetSuite Inc. (N) gets a higher grade this week, advancing from a C last week to a B. NetSuite Inc. provides relationship management software solutions. The company also gets A’s in sales growth and earnings surprise. For more information, get Portfolio Grader’s complete analysis of N stock.

This week, PTC Inc.’s (PTC) ratings are up from a C last week to a B. For more information, get Portfolio Grader’s complete analysis of PTC stock.

Changyou.com Ltd. Sponsored ADR Class A (CYOU) earns a B this week, jumping up from last week’s grade of C. Changyou.com Ltd. Sponsored ADR Class A develops and operates online games in China. The company also gets A’s in operating margin growth and free cash flow. For more information, get Portfolio Grader’s complete analysis of CYOU stock.

The rating of Infoblox Inc. (BLOX) moves up this week, rising from a C to a B. Infoblox Inc. develops, markets, and sells automated network control solutions worldwide. The company also gets A’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of BLOX stock.

TiVo Corp. (TIVO) improves from a C to a B rating this week. TiVo Corp. provides technology and services that allow consumers to watch and record live television. The company also gets A’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of TIVO stock.

This week, Exa Corporation (EXA) pushes up from a B to a A rating. Exa Corporation develops, distributes, and supports simulation software and services. The company also gets A’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of EXA stock.

Magic Software Enterprises Ltd. (MGIC) shows solid improvement this week. The company’s rating rises from a B to a A. Magic Software Enterprises Ltd. develops, markets, and supports software development and deployment technology. For more information, get Portfolio Grader’s complete analysis of MGIC stock.

Majesco (MJCO) boosts its rating from a C to a B this week. The company also gets A’s in sales growth and earnings revisions. For more information, get Portfolio Grader’s complete analysis of MJCO stock.

This is a strong week for VirnetX Holding Corporation (VHC). The company’s rating climbs to B from the previous week’s C. 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.

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.