Swaps, also known as rollover fees, are agreements between two parties to exchange cash flows or principal amounts based on different interest rates or currencies. In trading, particularly in Forex, swaps occur when a position is held overnight, resulting in an interest payment or receipt that is determined by the difference in interest rates between the two currencies involved. Typically, if the interest rate of the currency you are buying is higher than the one you are selling, you may earn a positive swap, whereas the inverse can result in a negative swap.
Swaps can vary depending on factors such as the broker's policy, the size of the position, and current market conditions. Traders should consider swap rates when planning their trading strategy, as these fees can significantly impact costs over time, particularly for positions held long-term.