There are a lot of subtleties with trading. To make money you need positive expectancy and you need 'inventory', or tradeable markets. They don't have to make l

There are a lot of subtleties with trading. To make money you need positive expectancy and you need 'inventory', or tradeable markets. They don't have to make large trades to make money. You have to consider transaction costs, rebates, avg win size, avg lose size, holding period, and a number of other criteria before you can judge these traders. I don't claim they won't go bust, but I do take issue that simply because they make out-sized returns they are labeled charlatans.