This week, the overall grades of three software stocks are lower, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

SRS Labs (SRSL) is on the decline this week, earning a D (“sell”) after receiving a C (“hold”) last week. SRS Labs develops and licenses audio and voice enhancement technologies. In Portfolio Grader’s specific subcategories of Earnings Growth and Margin Growth, SRSL also gets F’s. For more information, get Portfolio Grader’s complete analysis of SRSL stock.

Rally Software Development Corp. (RALY) ratings are on the decline this week as the company earns an F (“strong sell”). Last week, it received a D (“sell”). The stock gets F’s in Equity and Cash Flow. As of Oct. 16, 2014, 11.5% of outstanding Rally Software Development Corp. shares were held short. To get an in-depth look at RALY, get Portfolio Grader’s complete analysis of RALY stock.

The rating of Actuate Corporation (BIRT) declines this week from a D to an F. Actuate provides software and services to develop and deploy Rich Information Applications. The stock gets F’s in Earnings Revisions, Earnings Surprise and Margin Growth. For more information, get Portfolio Grader’s complete analysis of BIRT 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.