Option Fees

Size Definition

For option fees, Size means contract notional:

$$\mathrm{Size} = \mathrm{UnderlyingOraclePrice} \times \mathrm{ContractSize}$$

OptionPremiumValue means the quoted option premium multiplied by the contract size.

Current default option fee:

$$\mathrm{Fee} = \min(0.00025 \times \mathrm{Size},\ 0.10 \times \mathrm{OptionPremiumValue})$$

That is 2.5 bps of notional, capped at 10% of premium. These values are pool-level admin config.

Fee Table

Action	Fee	Fee routing	Rent recipient
Open option	min(0.00025 * Size, 0.10 * OptionPremiumValue)	25% Company / 75% Pool*	None
Open limit option	No fee charged. Premium plus an exact quoted execution fee is escrowed.	None until execution	None
Execute limit option	The exact fee quoted at placement	25% Company / 75% Pool*	Keeper / executor receives limit-order account rent
Cancel limit option	No fee. Full premium and quoted-fee escrow is refunded.	None	Owner receives limit-order account rent
Close option	min(0.00025 * Size, 0.10 * OptionPremiumValue)	25% Company / 75% Pool*	Owner receives position rent only on full close
Manual exercise	No fee	None	Owner receives position rent only on full exercise
Auto exercise	No fee	None	Keeper receives position rent
TP/SL option execution	min(0.00025 * Size, 0.10 * OptionPremiumValue)	25% Company / 75% Pool*	Keeper receives rent for any closed accounts
Remove final TP/SL order	No fee	None	Owner receives orderbook rent when the orderbook becomes empty

^* Default allocation. The Company / Pool split is configurable per pool by multisig.

Limit Option Fee Escrow

Placing a limit option order does not charge an option-open fee. The order escrows the premium budget plus the exact fee quoted from the placement inputs. When the order executes, the contract charges that stored quote, routes the configured company share for that pool to the company, and keeps the exact remainder in the pool. The default split is 25% company / 75% pool. The contract does not recalculate or refund the fee. Cancelling a pending limit option order refunds the full escrow.