https://www.interactivebrokers.com/en/index.php?f=1590&p=stocks2 https://www.interactivebrokers.com/en/index.php?f=938 As you can see there is no way you pay 50k for your lousy stock trades on a 100k account, but I'm sure you can do the math for yourself. But there is a skill in proper routing. We're currently looking at 200+ order types that differ from venue to venue. Ah...and by the way: I just did your homework. You're welcome