What is the swap fee on SizeProp?
SizeProp applies a swap fee of 0.0167% every 8 hours to open positions.
How often is the swap fee charged?
The swap fee is charged every 8 hours, meaning it is applied three times per day as long as a position remains open.
How is the swap fee calculated?
The swap fee is calculated using the following formula:
Swap Fee (8h) = Open Position Notional × 0.0167%
Where:
Open Position Notional = Position Size × Mark Price (or Index Price at the funding timestamp)
0.0167% = 0.000167 (decimal format)
What happens if I modify my position?
If you increase or reduce your position between swap intervals, the fee will be calculated based on the open notional value at the exact 8-hour snapshot time.
Each funding interval is calculated independently.
Is the swap fee charged on both long and short positions?
Yes. The swap fee applies to both long and short positions, as long as the position remains open when the 8-hour interval occurs.
How can I estimate my daily swap cost?
Since the swap fee is charged three times per day:
Approximate Daily Swap = Open Position Notional × 0.0167% × 3
Which equals:
Daily Rate ≈ 0.0501% of Open Position Notional
Example
If your open position notional is $10,000:
Swap Fee (8h) = 10,000 × 0.000167 = $1.67
Daily Swap Fee ≈ $1.67 × 3 = $5.01
Important Notes
Swap fees are automatically deducted at each 8-hour interval.
Fees are calculated based on the open position value at the time of calculation.
Swap fee is always displayed on the trading terminal, you can always easily see when the next swap fee event is going to occur.
Always refer to official SizeProp documentation for the latest terms.