Changing / canceling an order
The cost of alteration or cancelation of orders in options on stocks or indexes traded on U.S. exchanges is $ 0.01 per order.
The cost of alteration or removal orders in options on stocks or indices, as well as futures and options on futures traded on European exchanges is € 0.5 per order.
Exercise of Options
The cost of stock options exercised and stock indexes traded on the US exchanges is $ 0.005 per contract.
The cost of stock options exercised and stock indices, as well as futures and options on futures traded on European exchanges is € 2.5 for execution.