MARGIN CALL
Back to GlossaryDefinition
A broker’s demand for additional funds when account equity falls below maintenance requirements.
Summary
A margin call occurs when an investor's brokerage account value drops below the minimum required level (maintenance margin). When this happens, the broker demands that the investor deposit additional cash or securities to bring the account back to the required level. Think of it like a bank calling in a loan when the collateral value drops too low - the broker needs assurance that losses can be covered.
Usage Context
Critical for understanding risk management in leveraged trading, margin account operations, and broker-client relationships. Essential when studying trading mechanics, risk assessment, and regulatory requirements in financial markets.
Common Confusions
- Thinking margin calls only happen in stock trading (they occur in futures, forex, and options too)
- Confusing margin calls with margin requirements (the call is the demand, the requirement is the rule)
- Believing you always get advance warning (brokers can liquidate positions immediately in volatile markets)
- Assuming margin calls only happen when you lose money (they can occur due to changing margin requirements)