Trait FeeModel 

pub trait FeeModel {
    // Required method
    fn compute_fee(
        &self,
        price: Decimal,
        quantity: Decimal,
        contract_size: Decimal,
    ) -> Decimal;
}

Computes the trading fee for a single fill.

Arguments

• price - Execution price per unit of the underlying.
• quantity - Number of contracts (or shares/units) filled.
• contract_size - Multiplier converting contracts to underlying units (e.g. 100 for standard equity options). Use Decimal::ONE for spot.

Required Methods

fn compute_fee( &self, price: Decimal, quantity: Decimal, contract_size: Decimal, ) -> Decimal

Implementors

impl FeeModel for FeeModelConfig

impl FeeModel for PerContractFeeModel

impl FeeModel for PercentageFeeModel

impl FeeModel for ZeroFeeModel