Swap Fee Formula:
Swap Fee = Lots × Lot Size × Asset EOD Price × Daily Swap Rate × Swap-Day Multiplier
Each Component Explained:
Lots
How many lots you are trading.
Lot Size
Contract size for the instrument (e.g., 100,000 for FX).
✔️ This varies by asset, you can find specific lot size details here.
EOD Price (End-of-Day Price)
The asset’s price at rollover (usually 00:00 server time).
✔️ This is the price used for swap calculations.
Daily Swap Rate
Calculated as: Annual Swap % ÷ 360
✔️ Most brokers use a 360-day convention for swap interest.
✔️ The annual swap % comes from the platform.
Swap-Day Multiplier
The specific day’s required swap factor.
✔️ Wednesday = 3× (covers Saturday + Sunday interest).
✔️ Other days = 1×.