Forward rates can be defined as a fixed price given for buying a currency today to be delivered in the future, for example in three months' time, used in international trade to avoid the extra costs that could occur if the exchange rate changes the way the market is feeling about the future movements of interest rates. Spot exchange rates: Also known as "benchmark rates", "straightforward rates" or "outright rates", spot rates represent the price that a buyer expects to pay for a foreign currency in another currency. Spot rates use prices of the securities currently trading on the market.