A demand from your broker to deposit additional funds or securities into your margin account when its value falls below required levels.
What to consider
Know what triggers a margin call so you can prepare in advance.
Maintain extra funds as a buffer to cover potential calls.
Review your account frequently to stay ahead of issues.
Real world scenarios
When the value of his leveraged portfolio dropped significantly, David received a margin call, requiring him to deposit additional funds to avoid forced liquidation.