Abstract: A system for assessing market risk and for guiding a user in equity market investing uses a network connected server, software executing from a non-transitory medium at the server providing interactive interfaces for a user connected to the server via a browser link, and a plurality of data repositories coupled to the server. The interactive interfaces provide a determination of systematic risk as a single factor for aiding the user in making investment decisions, provide more detailed and supportive allocation recommendations that quantitatively account for both systematic and diversifiable risk, and provide timely alerts and instructions to the user based on changes in Market Risk in an effort to optimize the user's portfolio performance over time.