For the current week, the overall ratings of 10 Software stocks are worse, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This week, FalconStor Software (NASDAQ:FALC) falls to a D (“sell”), worse than last week’s grade of C (“hold”). FalconStor Software provides a software-only storage networking solution that simplifies storage management. In Portfolio Grader’s specific subcategories of Equity, Cash Flow, and Sales Growth, FALC also gets an F. For a full analysis of FALC stock, visit Portfolio Grader.

Vasco Data Security (NASDAQ:VDSI) gets weaker ratings this week as last week’s C drops to a D. VASCO Data Security International designs, develops, markets and supports open standards-based hardware and software security systems that manage and secure access to information assets. The stock also gets an F in Sales Growth. To get an in-depth look at VDSI, get Portfolio Grader’s complete analysis of VDSI stock.

SRS Labs (NASDAQ:SRSL) earns a D this week, falling from last week’s grade of C. SRS Labs develops and licenses audio and voice enhancement technologies. The stock gets F’s in Earnings Growth and Margin Growth. For more information, get Portfolio Grader’s complete analysis of SRSL stock.

TeleNav Inc. (NASDAQ:TNAV) is having a tough week. The company’s rating falls from C to a D. TeleNav provides location-based solutions. The stock gets F’s in Earnings Growth, Earnings Momentum, and Sales Growth. The stock price has dropped 8.5% over the past month, worse than the 2.2% increase the Nasdaq has seen over the same period of time. To get an in-depth look at TNAV, get Portfolio Grader’s complete analysis of TNAV stock.

Konami Corp. (NYSE:KNM) ratings are on the decline this week as the company earns an F (“strong sell”). Last week, it received a D (“sell”). Konami develops and sells consumer video game software and arcade game machines for amusement facilities. The stock gets F’s in Earnings Revisions and Sales Growth. For a full analysis of KNM stock, visit Portfolio Grader.

The rating of QAD Inc. (NASDAQ:QADA) slips from C to a D. QAD provides supply-chain-enabled enterprise resource planning software for mid-range and large multinational manufacturing companies. The stock gets F’s in Earnings Momentum and Earnings Surprise. The stock has a trailing PE Ratio of 36.60. For more information, get Portfolio Grader’s complete analysis of QADA stock.

Citrix Systems’ (NASDAQ:CTXS) rating weakens this week, dropping to a D versus last week’s C. Citrix Systems designs, develops, and markets technology solutions to deliver information technology services on-demand worldwide. The stock currently has a trailing PE Ratio of 39.30. To get an in-depth look at CTXS, get Portfolio Grader’s complete analysis of CTXS stock.

This week, Microsoft’s (NASDAQ:MSFT) rating worsens to an F from the company’s D rating a week ago. Microsoft develops and supports software products and services for various computing devices. For a full analysis of MSFT stock, visit Portfolio Grader.

This is a rough week for Fortinet (NASDAQ:FTNT). The company’s rating falls to D from the previous week’s C. Fortinet provides network security solutions. The stock’s trailing PE Ratio is 59.00. For more information, get Portfolio Grader’s complete analysis of FTNT stock.

Slipping from a D to an F rating, Pegasystems (NASDAQ:PEGA) takes a hit this week. Pegasystems develops customer relationship management software. The stock gets F’s in Earnings Growth, Earnings Revisions, Earnings Surprise, and Margin Growth. To get an in-depth look at PEGA, get Portfolio Grader’s complete analysis of PEGA 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.