Margin is the amount of money required in your account in order to open a position. Margin is calculated based on the current price of the base currency against USD, the size (volume) of the position and the leverage applied to your trading account. If you do not have sufficient free equity available you will be unable to open a position on the trading platform. The free margin amount shown in the trading platform is the amount you have available to use should you wish to open additional positions.
Margin is calculated using the following formulae:
Margin required = (current market price x Volume) / Account leverage
In practice this would be calculated as follows:
If open a position of 0.1 (10000) in EUR/USD at the current market price of 1.35645 and your account has a leverage of 1:400 you would calculated the margin required as follows:
(1.35645 x 10000) / 400 = $33.91
In this example the margin on this position would be $33.91, therefore in order to open a positions of this size you would require at least $33.91 in free margin in your trading account.
RISK WARNING: Trading in Forex and Contracts for Difference (CFDs), which are leveraged products, is highly speculative and involves substantial risk of loss. It is possible to lose more than the initial capital invested. Therefore, Forex and CFDs may not be suitable for all investors. Only invest with money you can afford to lose. So please ensure that you fully understand the risks involved. Seek independent advice if necessary.