Margin Call Calculator
Find the stock price at which your broker would issue a margin call on a leveraged position.
What triggers a margin call?
When you buy stock on margin, you borrow part of the purchase price from your broker. If the stock’s value falls enough that your equity drops below the broker’s maintenance margin requirement, you’ll receive a margin call demanding you deposit more funds or sell securities.
The formula
Margin Call Price = Loan Amount per Share / (1 − Maintenance Margin Requirement), where Loan Amount per Share = Purchase Price × (1 − Initial Margin Percentage). This is the price at which your equity percentage in the position equals exactly the maintenance margin requirement.
This calculator is for general educational purposes about margin trading mechanics, not investment or trading advice. Actual broker margin requirements and rules vary and can change without notice; margin trading carries substantial risk of loss.