no risk - no profit
Basiccaly risk and profit are directly proportional on trading and on trading we can manage the risk and we can manage the profit too, everything depend on the system of trading that be made by the traders them selves. If the traders doesn't have it, the trading will become more high risk.
Yes, risk and profit are directly proportion, if you are taking much risk your percentage of profit increase, to me I think risk is involve in all kind of trading and there is not a sing trading where no risk is involve.
If you want to make money you have to take risk, without facing it you cannot make money, in trading you can reduce your risk of making money if you have some good experience and skill of trading.
All investments do really have risk and trading is not excluded on that because its already an investment which you will definitely put up money to gain money because if you don't put risk on it you will not earn something same as you mentioned too. Experience does really matter to be profitable on trading and which really helps to lessen to risk compared on trading blindly.