Red line connects two points based on exponential moving averages. I don't use SMA and have read that weighted is better than exponential. Hull is better than both and Alma is a modern take only created within the last 20 years. I suppose it all depends on what moving average line the person buying uses to base their decisions. If a super rich person uses Simple Moving Average and I'm using something else, will we both see the same thing? Also, why would someone educated and wealthy use something called "simple moving average?" If you were wealthy and educated what would you use?