Margin Call Calculator

Calculate the stock price that triggers a margin call. See your current margin and cushion.

By Konstantin Iakovlev · Updated April 2026 · Source: SEC

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Margin Call Price

$33.33

33.33% cushion from current price

Total Position Value

$10,000.00

Your Equity

$5,000.00

Borrowed Amount

$5,000.00

Current Margin

50.00%

Position Summary

Stock Price$50.00
Shares200
Total Position Value$10,000.00
Your Equity (Initial Deposit)$5,000.00
Borrowed from Broker$5,000.00
Current Margin %50.00%
Margin Call Price$33.33
Cushion Before Margin Call$16.67 (33.33%)

A margin call occurs when your equity falls below the maintenance margin requirement. You will need to deposit additional funds or sell securities to meet the margin requirement. This calculator assumes a simple margin structure; actual margin requirements may vary by broker and security type. Not financial advice.

Use the Margin Call Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

How It Works

When you trade on margin, your broker tracks the price at which it will demand more cash or force a sale of your holdings. This tool pinpoints that trigger price so you can size leveraged positions with the downside in clear view, a discipline that matters all the more given the market swings many expect heading into 2026.

The trigger is found by dividing your loan amount by the number of shares multiplied by one minus the maintenance margin percentage. From there, the tool reads your current standing by weighing your equity against the total market value of the position and the maintenance margin the broker requires, which shows how much cushion you have before a call lands.

Two details quietly erode that cushion. Commissions and other trading fees chip away at equity in ways traders often overlook, so factor them in. Maintenance margin requirements also differ from one brokerage to the next, and because that figure drives the whole calculation, the level your own broker enforces is the one that decides when a call gets issued.

Example: Tech Stock Investment

  1. 1 Imagine you purchased 1,000 shares of 'Quantum Innovations Inc.' (QII) at $50 per share, for a total of $50,000. Your brokerage has an initial margin requirement of 50% and a maintenance margin of 30%. You borrowed $25,000.
  2. 2 Using the formula, your margin call price would be $25,000 (Loan Amount) / (1,000 shares * (1 - 0.30 maintenance margin)) = $35.71. If QII's price drops to $35.71, your equity would be $10,710, which is exactly 30% of the $35,710 market value, triggering a margin call.
  3. 3 In this scenario, if QII's stock price falls to $35.71, you will receive a margin call. Your current margin is the percentage of your equity relative to the market value, and your cushion is the dollar amount your equity exceeds the maintenance margin requirement.
  4. 4 To avoid a margin call, you would need to deposit additional funds to bring your equity above the maintenance margin, or sell some of your QII shares. Monitoring your margin cushion allows you to proactively manage your risk before a margin call is issued.

Source: SEC · Last updated: April 2026

Frequently Asked Questions

What is a margin call?
A margin call occurs when your account equity falls below the broker's maintenance margin requirement (typically 25-30% of the position value). You must deposit more cash or securities, or the broker will sell your holdings to cover the shortfall.
How do I calculate my margin call price?
Margin call price = Loan Amount / (Shares x (1 - Maintenance Margin)). If you bought 100 shares at $50 with 50% margin ($2,500 loan) and 25% maintenance, the margin call triggers at $2,500 / (100 x 0.75) = $33.33 per share.
How can I avoid a margin call?
Keep your margin usage conservative (below 50% of your equity), monitor positions daily, set stop-loss orders to limit downside, maintain extra cash in your account as a buffer, and avoid concentrating margin in a single volatile stock.

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