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Trading

BTC Options0.03% of the underlying or 0.0003 BTC per options contract0.03% of the underlying or 0.0003 BTC per options contract
ETH Options0.03% of the underlying or 0.0003 ETH per options contract0.03% of the underlying or 0.0003 ETH per options contract
N.B. BTC, ETH, etc options fees can never be higher than 12.5% of the options price. For example, if an option is traded at 0.0001 BTC, the taker fee will be 0.0000125 BTC (instead of 0.0003 BTC), which is calculated as 12.5% of 0.0001 BTC.

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Settlement

Options deliveries are charged an additional fee.
BTC/ETH Options0.015% - this fee can never be higher than 12.5% of the options value

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Liquidation

Liquidations are charged an additional fee. Fees are increased by a percentage of the underlying contract size. The additional fee of the liquidation is automatically added to the insurance fund.
BTC Options0.19% of the underlying asset or 0.0019 BTC per options contract, 0.16% of the underlying asset, or 0.0016 BTC per contract is added to the insurance fund.
ETH Options0.19% of the underlying asset or 0.0019 ETH per options contract, 0.16% of the underlying asset or 0.0016 ETH per contract are added to the insurance fund.