This week, the ratings of 4 Software stocks on Portfolio Grader are down. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This week, Symantec Corporation’s (SYMC) rating worsens to a D from the company’s C rating a week ago. Symantec Corporation provides information security, storage, and systems management solutions to businesses and consumers. For more information, get Portfolio Grader’s complete analysis of SYMC stock.

This week, Attunity Ltd (ATTU) drops from a C to a D rating. Attunity Ltd provides information availability software solutions for real-time data integration, application release automation, and managed file transfer. The company also gets F’s in earnings growth, earnings revisions, earnings surprise, and return on equity. For more information, get Portfolio Grader’s complete analysis of ATTU stock.

This is a rough week for Datawatch Corporation (DWCH). The company’s rating falls to D from the previous week’s C. Datawatch Corporation provides business intelligence/enterprise reporting, data transformation, and support center solutions. The company also gets F’s in earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of DWCH stock.

SeaChange International, Inc. (SEAC) slips from a D to a F this week. SeaChange International, Inc. is a developer, manufacturer, and marketer of digital video systems and services. The company also gets F’s in earnings revisions, earnings surprise, earnings momentum, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of SEAC 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.