What Is a “Margin Call” and When Is It Triggered in the MTM Process?

A margin call is a demand from a broker or clearinghouse for a trader to deposit additional funds into their margin account. It is triggered during the MTM process when the equity in the trader's account falls below the maintenance margin level.

The purpose is to restore the account balance to the initial margin level, ensuring the trader has sufficient collateral to cover any further adverse price movements.

What Is the Typical Time Limit to Meet a Margin Call?
What Is a ‘Margin Call’ and How Does It Precede Forced Liquidation?
What Is a ‘Margin Call’ in Options Trading and How Is It Triggered?
What Is a ‘Margin Call’ and How Is It Triggered by the Mark-to-Market Process?
What Happens during a “Margin Call” and Why Is It Crucial for CCP Stability?
What Is the “Margin Call” Process and How Does It Relate to Maintenance Margin?
What Is a “Margin Call” and How Does It Relate to Liquidation?
What Is a “Maintenance Margin” and When Is It Triggered for an Options Seller?

Glossar