I prevented my account from margin call to buy a very simple way that I handle my money management very tightly and do not open many positions at a time. I also avoid big lots and trade with just a small lot so when my trade suffers losses, I do not get margin call. and If there is no good revenue management, you will be able to deal with Margin Call in no time. I believe no one chose it. It is possible to avoid calling Margin in a short period of time with discipline to place risk management in every transaction.