@ tradelon Only for those using TWS from Interactive Brokers: In the TWS Configuration menu you will find " Smart Routing". If you click on this the smart Routing configuration will open. At the lower end there is the "Smart Option Routing Algorythm". Here you can configure your prefered Routes for Option-Orders. For example: If you choose "maximize Fills" you must count with higher commissions but perhaps faster fills. For exact explanation you must read the TWS Manual or search the IB-Homepage. aiti