I don't know, How many people is doing alt coins trader Most of the people use to sell the bitcoins and buy the bitcoins normally. Even I use to do that but now I holding the bitcoins for halving and I will make profit on that time...
well man is pretty risk but the worst problem is retrieve from your pocket and invest in some coin, mostly of times i calculate somethign i call (lost proffit) this investment i just throw him away like just a giveway, mostly of times is just 0,05 just try 0.5 and split in 10 coins and its done , but always place many orders to acumlate more volume if they dump
Alt coin trading is very risky in my opinion. You really need to know the market that you are getting into. In this case the coin you are going to trade with.