Margin Call Calculator

Calculate the stock price that triggers a margin call.

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Margin Analysis

Enter your stock position and margin details.

Margin call price
$0
Drop from current: 0%
Total value
$0
Loan amount
$0
Your equity
$0
Equity %
0%
Margin call price
$0
Drop to margin call
0%

Worked example

With the default inputs shown below, this calculator returns the following results:

InputValue
Stock purchase price ($)$100
Number of shares1000
Initial margin requirement (%)50%
Maintenance margin (%)25%
ResultValue
Margin call price$66.67
Total value$100,000.00
Loan amount$50,000.00
Your equity$50,000.00
Equity %50.0%
Drop to margin call33.3%

Values shown are produced by this page in your browser; change any input to update them.

How to use the Margin Analysis

  1. Stock purchase price ($) — default $100
  2. Number of shares — default 1000
  3. Initial margin requirement (%) — default 50%
  4. Maintenance margin (%) — default 25%
  5. Press Calculate to update the results instantly.

Frequently asked questions

A broker demand to add cash or securities because the equity in your margin account has fallen below the maintenance requirement.
When the account value falls to the maintenance margin threshold. With 50% initial and 25% maintenance on $20,000 borrowed, a sharp fall can trigger it within days.
The broker can sell your positions without asking, often at the worst moment. It is better to add funds early or reduce the position deliberately.

Sources & references