A swap in trading refers to an agreement between two parties to exchange cash flows or financial instruments over a specified period. Generally, swaps are used to manage risk or speculate on changes in interest rates or currency exchange rates. In the context of Forex trading, a swap is the interest differential between the two currencies involved in a trade. When a trader holds a position overnight, they may either receive or pay interest depending on the respective interest rates of the currencies traded.
Swaps can also impact the overall cost of trading, particularly in leveraged positions. Brokers usually calculate swaps daily, and these can vary based on market conditions and the broker's policy. It is essential for traders to understand how swaps function and their potential impact on their trading strategy.