Hi Traders, I am an InteractiveBrokers user, and wonder what it is like to trade Emini on an Euro currency base account not USD. In thier site, they say as follows. You may buy or sell securities in a currency other than your base currency and a margin loan is created in the non-base currency and is collateralized by the Base Currency. If you do not wish to have a margin loan in a non-base currency, you may exchange currencies through IB's "IDEAL" currency network. Bids and offers are posted for trading just like any other securities or commodities commissions. IB's currency rates are much better than any retail bank or credit card exchange rate and they are very close to the rate offered by professionals in the Interbank Market. For information on FX commissions. My question is do I have to pay a round-tip currency spread of EUR-USD when I open and close the position after all? Is it not clever at all or unrealistic to trade frequently non-base currency equity such as Emini SP on EURO base currency account? I will ask the user support, but I'd like to hear the advice and opnion by the traders here. I am going to post a reply from the support here, too. Thank you.