Options fees have two components: the Transaction Fee and the Exercise Fee.
A transaction fee will be charged after opening or closing a position. The transaction fee for each transaction is calculated based on the underlying asset’s Spot Index price at the time of the order completion (capped at 10% of the option’s value).
Formula:
Transaction Fee = Minimum (Transaction Fee Rate * Index Price * Contract Unit, 10% * Option Traded Price) * Option Traded Size
Example:
User A buys the following Options:
User A places a Limit Buy Order for 3 ETHUSDT Options contracts with a 1,000 USDT premium. The order was executed when the ETHUSDT Spot Index price hits 2,000 USDT.
In this case, Transaction Fee = Minimum (0.03% * 2,000, 10% * 1,000) * 3 = 1.8 USDT
Exercise fees are charged whenever the Options is exercised. The exercise fee for each transaction is calculated based on the settlement price at the time of the order completion (capped at 10% of the option’s value).
Exercise fee rate: 0.015%
Formula:
Exercise Fee = Minimum [Exercise Fee Rate * Settlement Price * Contract Unit, 10% * Option Value] * Position Size
Example:
User A’s case:
In this case, Exercise Fee = Minimum [0.015% * 2,200, 10% * (2,200 − 2,000)] * 3 = 0.99 USDT
Liquidation fees are charged whenever a user’s position is liquidated. The liquidation fee for each liquidation is calculated based on the underlying asset’s Spot Index price at the time of liquidation (capped at 25% of the option’s value).
Exercise fee rate: 0.19%
Formula:
Liquidation Fee = Minimum (Liquidation Fee Rate * Index Price * Contract Unit * abs(Position Size)，Option Premium of the liquidation * 25%)
Let’s revisit User A’s case:
In this case, Liquidation Fee = Minimum (0.19% * 2,000 * 1 * abs(3)，100 * 25%) = 11.4 USDT
