I currently use Options House as my broker. I have an issue with broken wing butterflies, as the platform does not recognize them as a single trade in regards to margin. IT treats both verticals separately and applies margin for each wing individually since they are unbalanced. Therefore I am unable to buy as many lots as I would if I were to place a balanced butterfly with an additional call, or whatever the other variations of this type of trade. Options house said this was industry standard and that they could not fix it in their platform. Is this true? Do any of the other platforms (TOS, IB) recognize the BWB?