How it works. Five real charts every day, from real stocks and ETFs between 2012 and 2026. Each shows 60 trading days with the price rescaled to 100, so you can't recognize the ticker by its price. Call the next 10 trading days (about two weeks): up more than 4%, down more than 4%, or nowhere in between. Green is right, yellow is one step off, red is the opposite call. A new set drops every midnight. Not financial advice, just a game about reading charts.