How to Calculate Margin Call
What is Margin Call?
Calculates when a margin call will be triggered based on account equity and maintenance margin requirements.
Formula
Margin Call Price = Purchase Price * (1 - Maintenance Margin Req)
Step-by-Step Guide
- 1Enter the stock purchase price and quantity
- 2Input your margin loan amount and maintenance margin requirement
- 3Calculate the price at which your account triggers a margin call
Worked Examples
Input
100 shares at $50, $2,500 loan, 30% maintenance margin
Result
Margin call at $35.71 per share
Price decline triggers forced liquidation
Common Mistakes to Avoid
- ✕Confusing initial margin with maintenance margin
- ✕Not accounting for interest charges on margin loans
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