35 private const decimal _equityOptionFee = 0.6m;
40 private const decimal _indexOptionFee = 1m;
45 private const decimal _futuresFee = 1.5m;
50 private decimal CommissionPerTrade =>
USResident ? 0m : 5.0m;
72 if (parameters ==
null)
74 throw new ArgumentNullException(nameof(parameters),
"Order fee parameters cannot be null.");