How do I avoid the risk of an Margin Call (MC3)? There are many ways to avoid a margin call (MC3), here are a few: Effectively manage stop losses Reduce position size Deposit additional funds Open a Hedge trade. Related articles What is a Margin Call? How do you calculate the required margin for options? How long can I keep my positions open? What are the risk and rewards of margin trading? How is the usable margin calculated?