For the current week, the overall ratings of 15 software stocks are worse, according to the Portfolio Graderdatabase. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

FireEye, Inc.’s (FEYE) rating falls to a D (“sell”) this week, down from C (“hold”) the week prior. In Portfolio Grader’s specific subcategories of Earnings Momentum and Equity, FEYE also gets F’s. As of Jan. 8, 2015, 11.9% of outstanding FireEye, Inc. shares were held short. The stock has a trailing PE Ratio of 94.10. For more information, get Portfolio Grader’s complete analysis of FEYE stock.

The rating of SRS Labs (SRSL) slips from a C to a D. SRS Labs develops and licenses audio and voice enhancement technologies. The stock gets F’s in Earnings Growth and Margin Growth. To get an in-depth look at SRSL, get Portfolio Grader’s complete analysis of SRSL stock.

Jive Software, Inc. (JIVE) ratings are on the decline this week as the company earns an F (“strong sell”). Last week, it received a D (“sell”). Jive Software provides a social business software platform that enables productive and effective workforce through enhanced communications and collaboration both inside and outside the enterprise. The stock gets F’s in Equity and Cash Flow. For more information, get Portfolio Grader’s complete analysis of JIVE stock.

Slipping from a C to a D rating, FleetMatics Group Ltd. (FLTX) takes a hit this week. The stock also rates an F in Earnings Momentum. As of Jan. 8, 2015, 23% of outstanding FleetMatics Group Ltd. shares were held short. The trailing PE Ratio for the stock is 43.10. To get an in-depth look at FLTX, get Portfolio Grader’s complete analysis of FLTX stock.

ACI Worldwide, Inc. (ACIW) gets weaker ratings this week as last week’s C drops to a D. ACI Worldwide develops, markets, installs, and provides support for a line of products and services that facilitate electronic payments. The stock currently has a trailing PE Ratio of 31.90. For more information, get Portfolio Grader’s complete analysis of ACIW stock.

Aspen Technology, Inc.’s (AZPN) rating weakens this week, dropping to a D versus last week’s C. Aspen Technology is a global provider of mission-critical process optimization software solutions, which are designed to manage and optimize plant and process design, operational performance, and supply chain planning. The stock’s trailing PE Ratio is 31.60. To get an in-depth look at AZPN, get Portfolio Grader’s complete analysis of AZPN stock.

RealPage, Inc. (RP) is having a tough week. The company’s rating falls from a C to a D. Real Page provides a platform of on demand software solutions that integrate and streamline rental property management business functions. The stock gets F’s in Earnings Growth and Margin Growth. For more information, get Portfolio Grader’s complete analysis of RP stock.

This is a rough week for Splunk Inc. (SPLK). The company’s rating falls to D from the previous week’s C. Splunk provides an innovative software platform that enables organizations to gain real-time operational intelligence by harnessing the value of their data. The stock also gets an F in Equity. To get an in-depth look at SPLK, get Portfolio Grader’s complete analysis of SPLK stock.

This week, NQ Mobile, Inc. Sponsored ADR Class A (NQ) drops from a D to an F rating. NQ Mobile provides mobile Internet services focusing on security, privacy, and productivity. The stock gets F’s in Earnings Revisions, Earnings Surprise and Equity. Cash Flow and Margin Growth also get F’s. As of Jan. 8, 2015, 19.8% of outstanding NQ Mobile, Inc. Sponsored ADR Class A shares were held short. For more information, get Portfolio Grader’s complete analysis of NQ stock.

Slipping from a D to an F rating, Taomee Holdings Ltd. Sponsored ADR (TAOM) takes a hit this week. Taomee Holdings produces children’s entertainment. The stock receives F’s in Earnings Growth, Earnings Momentum and Earnings Revisions. Margin Growth and Sales Growth also get F’s. The trailing PE Ratio for the stock is 27.50. To get an in-depth look at TAOM, get Portfolio Grader’s complete analysis of TAOM stock.

TiVo (TIVO) is having a tough week. The company’s rating falls from a D to an F. Tivo provides technology and services that allow consumers to watch and record live television. The stock gets F’s in Earnings Momentum, Earnings Revisions and Earnings Surprise. Equity and Margin Growth also get F’s. The stock has a trailing PE Ratio of 51.50. For more information, get Portfolio Grader’s complete analysis of TIVO stock.

SAP SE Sponsored ADR’s (SAP) rating weakens this week, dropping to an F versus last week’s D. SAP sells licenses for software solutions and related support services, in addition to offering consulting, training and other services for its software solutions. The stock also gets an F in Sales Growth. To get an in-depth look at SAP, get Portfolio Grader’s complete analysis of SAP stock.

Sapiens International Corp. NV (SPNS) earns a D this week, moving down from last week’s grade of C. Sapiens International is a global provider of information technology solutions. The stock currently has a trailing PE Ratio of 26.80. For more information, get Portfolio Grader’s complete analysis of SPNS stock.

Citrix Systems, Inc. (CTXS) gets weaker ratings this week as last week’s C drops to a D. Citrix Systems designs, develops, and markets technology solutions to deliver information technology services on-demand worldwide. The trailing PE Ratio for the stock is 37.80. To get an in-depth look at CTXS, get Portfolio Grader’s complete analysis of CTXS stock.

This week, CommVault Systems, Inc.’s (CVLT) rating worsens to an F from the company’s D rating a week ago. CommVault Systems provides data and information management software applications and related services. The stock gets F’s in Earnings Growth, Earnings Revisions and Earnings Surprise. The stock currently has a trailing PE Ratio of 47.10. For more information, get Portfolio Grader’s complete analysis of CVLT 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.