Stock and bond portofolio managment tools

I am looking for a stock and bond portfolio management tool that can balance returns and risk for my investment portfolio. The ideal candidate will have experience in developing tools that can balance returns and risk. The tool should be able to manage both stocks and bonds. My preferred level of involvement in managing my portfolio is a mix of both active and passive management. The ideal candidate should be able to provide me with a tool that can help me make informed decisions about my portfolio.