Shares Saver

US Stock Margin Calculator

Calculate Reg T buying power, margin requirements, and margin call trigger price. Figures are illustrative only.

$
1.005000.00
110,000
%
25100
%
2550
Buying Power$15,000
Loan Amount$7,500
Margin Call Trigger Price$100.00
Total Position Value
$15,000
Margin Breakdown

Your Equity

$7,500

Broker Loan

$7,500

An illustration using the figures you entered, for education only — not financial, investment or tax advice. Real returns depend on prices, fees and tax at the time.

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Margin Call Price Formula

Trigger Price = Loan ÷ [Shares × (1 − Maintenance%)]
Loan

Amount borrowed from broker

Shares

Number of shares held

Maintenance%

Maintenance margin requirement (e.g. 25%)

Questions

Frequently Asked Questions

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