It is impossible to know the precise answer to that question but I will guess that more than what you think, someone that bought at 600 dollars a year ago is making a lot more than that and I think many are still holding their coins, why? Because they think bitcoins can still go a lot higher and I think they are right so when you see profits of 500% that seems like a good profits but when you think about the profits that you can still get, then 500% is nothing.