What is Swap in Forex
What Exactly is Swap in Forex?
Swap in forex is the interest rate differential between the two currencies in a pair. When you hold a position overnight, you either pay or receive swap based on whether you are long or short. For example, if you buy EUR/USD (long EUR, short USD), you earn interest on EUR and pay interest on USD. If the EUR interest rate is higher than USD, you receive a positive swap; if lower, you pay a negative swap.
How Swap Rates Are Calculated for Sweden Traders
Swap rates are calculated using the central bank interest rates of the currencies involved. For Sweden traders, this is especially relevant when trading USD pairs because the US Federal Reserve rate and the Swedish Riksbank rate differ. The formula is: Swap = (Interest Rate of Base Currency – Interest Rate of Quote Currency) × Trade Size × Pip Value / 365 (or 360 for some pairs). Brokers add a small markup, so the rate you see on your platform may differ slightly from the pure interbank rate.
Why Swap Matters for Sweden Retail Traders
For Sweden retail forex traders, swap can turn a profitable trade into a losing one if held too long. For instance, holding a short USD/SEK position when Swedish rates are higher than US rates means you pay negative swap daily. Over weeks, this cost accumulates. Many Sweden traders use swap to their advantage by trading carry trades – buying high-yield currencies against low-yield ones to earn positive swap. However, this strategy carries currency risk.
Practical Example with USD for Sweden Traders
Imagine you are a Sweden trader who buys 1 standard lot (100,000 units) of USD/SEK. The current USD interest rate is 5.5% and SEK is 3.5%. You are long USD (earning 5.5%) and short SEK (paying 3.5%), so you earn a positive swap of about 2% per year on the notional amount. That works out to roughly 2,000 USD per year on 100,000 USD, or about 5.5 USD per day. Conversely, if you short USD/SEK, you would pay that amount.