Swap
For swap in forex charges are referred, which the trader pay or get, if he holds a open position overnight or over the weekend. The amount of the swap is calculated as the interest rate differential, that exists between the bought and sold currency. Is the interest for the country's currency, which I buy lower than the currency in which I sell my account is debited with the interest differential. If the interest on the purchased currency higher than the sold, the difference is credited to the account.