How do swaps work in trading?

In trading, swaps refer to the agreements between two parties to exchange cash flows or financial instruments over a specified period. Typically, swaps are used to manage interest rate or currency risks. In the context of Forex trading, a swap is the interest paid or earned on a currency position held overnight. When a trader holds a position beyond the daily cut-off time, a swap rate is applied, which is determined by the interest rate differential between the two currencies involved. The swap can either be positive, meaning a trader earns interest, or negative, signifying an interest charge. Understanding swaps is crucial for traders who wish to hold positions longer than a day, as these costs can affect overall profitability.