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Margin Call Price Calculator

Work out margin call price instantly with clear inputs, formula shown and shareable results.

About Margin Call Price Calculator

A margin call comes when equity falls to the maintenance requirement. Since the loan per unit is fixed, the trigger price is that loan divided by one minus the maintenance margin — the tighter the initial margin, the closer the call.

Formula

Margin call price

Call price = P(1 - initial margin) / (1 - maintenance margin)

Worked example

With the default values below, Margin Call Price Calculator returns Price That Triggers A Margin Call of $857.1429. Change any input above and every figure here is recalculated in your browser.

Inputs used

Purchase Price Per Unitminimum 0
1,200
Initial Marginaccepts 5–100 %
50 %
Maintenance Marginaccepts 1–90 %
30 %

Results

Price That Triggers A Margin Call
$857.1429
Fall Needed To Trigger It
28.571%
Amount Borrowed Per Unit
$600.0000
Your Equity Per Unit At The Call
$257.1429

Step by step

  1. 1Values used
  2. 2Margin call price
  3. 3Price That Triggers A Margin Call= 857.1429
  4. 4Fall Needed To Trigger It= 28.571
  5. 5Amount Borrowed Per Unit= 600.0000
  6. 6Your Equity Per Unit At The Call= 257.1429

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Figures are estimates for planning only. Market returns are not guaranteed, and rates, limits and tax rules change. This is not financial or tax advice — speak to a qualified adviser before acting.
  • This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Figures are estimates for planning only. Market returns are not guaranteed, and rates, limits and tax rules change. This is not financial or tax advice — speak to a qualified adviser before acting.

Frequently Asked Questions

How can the call price be pushed lower?

Put up more initial margin or reduce the position. Both cut the borrowing per unit.

What if the call is not met?

The broker liquidates holdings at market, usually with no discretion over which positions go first.

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