Stock portfolio manager in WPF

I have a requirement to write a stock portfolio management software. On high level it will have the following features: 1. Data entry for executed trade 2. Reporting on the open and closed positions 3. Multiple account management 4. Auto-update the prices of stock from web I can provide detailed description of all features required. The application should reporting and graphing capabilities. SQL Server and WPF must be used. I will review the datamodel, source code etc. Only providers with past experience with the following should respond: 1. Stock trading/Portfolio management or security related software 2. WPF (preferably with MVVM pattern)