We're building a clean, modern website that allows users to showcase the performance of their “model portfolios.” A model portfolio is a simplified version of a stock portfolio, where the user selects a list of stocks and assigns percentage allocations to each. The platform will automatically recalculate key performance metrics for each portfolio once per day. We will provide clear methodologies for calculating each metric. These calculations require access to global stock market data – either delayed or end-of-day data is sufficient. The developer should suggest a data source (e.g. Yahoo Finance, Alpha Vantage, etc.). The website will consist of 4 fully-responsive web pages: homepage, login/registration, user public profile, user private page (details below)