What Is a Spot Rate?
A spot rate is the exchange rate for immediate currency conversion. It's the starting point for all FX transactions.
Key Takeaways
- A spot rate is the exchange rate for immediate settlement, typically within two business days.
- Spot rates change continuously throughout the trading day.
- Forward rates are derived from spot rates adjusted for interest rate differentials.
What a spot rate is
A spot rate (or spot price) is the current exchange rate for a currency pair, for settlement within two business days. When you convert currency 'today', you are transacting at (or near) the spot rate. It is the baseline from which all other rates — forward rates, cross rates — are derived.
How spot rates change
Spot rates update continuously throughout the trading week (FX markets trade 24 hours Monday to Friday). Economic data releases, central bank announcements, geopolitical events, and large institutional orders can all move spot rates significantly within minutes. The rate you get at 9am may be materially different from the rate at 3pm.
Spot vs forward rate
The forward rate is the rate for a currency exchange that settles at a future date. It differs from the spot rate by the interest rate differential between the two currencies. If UK interest rates are higher than US rates, the forward rate for GBP/USD (from a UK perspective) will be slightly lower than the spot rate — reflecting the higher yield available by holding sterling.
When spot transactions are appropriate
Spot transactions suit currency needs that are immediate and certain: paying a supplier invoice due now, converting incoming customer payment, covering operating expenses in a foreign currency. For future payments that are known in advance, a forward contract may offer better certainty. For ad hoc or small transactions, spot is usually the most practical option.