The minimum capital that is required to trade effectively and compound profit is 50$; anything below that means that you are literally wasting your own calls, signals;
I mean $50 won't make any difference in big market, they are free to use whatever amount they want to as long as they can
afford it and won't be afraid to lose it when something bad happens.
Even in our local exchange, they encourage you to start with smaller amount first for example $10 for learning purpose. So at least they will gain knowledge from smaller capital and gain the progress as the time being.
the only way to make money is if you are making over 100% profit which is not sustainable. Your profit is someone else trade capital; so i implore us to twice your trading capital.
Even 100% profit which is doubling your investment is quite difficult nowadays.