I have been trying to figure out how IDEALPRO deal with the following issue: There are two ways to enter into a forex transaction: 1) You take physical EUR and convert it to USD as you would at an exchange booth. In other words, in order to realize your gain in terms of EUR, you would have to convert the USD back into EUR. 2) You have a base currency. And with this base you borrow EUR, then you sell the borrowed EUR to buy USD. Your profit is realized in your base currency. In other words, there is a 3 way transaction between your base, the currency you borrow and the one you buy with the borrowed currency. I still don't understand how IB deals with these. Are both methods possible and if so how? Thank you.