This week, seven software stocks are improving their overall rating on Portfolio Grader. Each of these rates an “A” (“strong buy”) or “B” overall (“buy”).

This week, Envivio, Inc. (ENVI) is making solid headway. The company’s rating improves to an A (“strong buy”) from last week’s B (“buy”) rating. Envivio provides software-based IP video processing and distribution solutions to mobile and broadband service providers, cable multiple system operators, and direct broadcast satellite service providers and content providers. In Portfolio Grader’s specific subcategories of Earnings Momentum, Earnings Revisions and Sales Growth, ENVI also gets A’s. For more information, get Portfolio Grader’s complete analysis of ENVI stock.

This week, Monotype Imaging Holdings (TYPE) is showing significant improvement as the company’s rating hops from a C (“hold”) to a B (“buy”). Monotype Imaging Holdings is a global provider of text imaging solutions for printing digital text. For more information, get Portfolio Grader’s complete analysis of TYPE stock.

This week, Giant Interactive Group, Inc. Sponsored ADR (GA) pushes up from a B to an A rating. Giant Interactive Group develops and operates online games in the People’s Republic of China. For more information, get Portfolio Grader’s complete analysis of GA stock.

This week, Ebix, Inc.’s (EBIX) ratings are up from a B last week to an A. Ebix provides a series of application software products for the insurance industry, including carrier systems and agency systems. For more information, get Portfolio Grader’s complete analysis of EBIX stock.

This is a strong week for Descartes Systems Group Inc. (DSGX). The company’s rating climbs to B from the previous week’s C. Descartes Systems is a global provider of federated network and global logistics technology solutions that help its customers make and receive shipments and manage related resources. Shares of the stock have been changing hands at an unusually rapid pace, three times the rate of the week prior. For more information, get Portfolio Grader’s complete analysis of DSGX stock.

Progress Software Corporation (PRGS) earns a B this week, jumping up from last week’s grade of C. Progress Software develops, markets, and distributes application development, deployment, and integration software to business, industry, and government worldwide. For more information, get Portfolio Grader’s complete analysis of PRGS stock.

Aware, Inc. (AWRE) boosts its rating from a C to a B this week. Aware supplies various products for the biometrics and digital subscriber line (DSL) service assurance industries primarily in the United States and Germany. For more information, get Portfolio Grader’s complete analysis of AWRE 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.