To BlueHorseshoe:
IB commissions are published at
http://www.interactivebrokers.com/en/accounts/fees/commissionStockIndexOptions.php?ib_entity=llc
0.2% of option value
Minimum per order is KRW 1,000
Example: 10 Contracts @ KRW 0.75 Premium (KRW 100,000 Multiplier) = KRW 1,500
It is...