How are currency prices determined? Client Service Team 05 November 2022 13:28 Updated Exchange rates are determined by basic supply and demand factors, including interest rates, economic growth, inflation and major events like war or political change. Related articles Can I place a trade when the market is closed? How do I change my leverage? Do you prohibit any trading styles? Is there a maximum slippage level? What’s the difference between a Pip, Tick and Point?