Soo... Can anyone explain to me how IB's margin requirements work on IDEALPRO? The reason I ask is when I click on 'Account' in TWS I see 'Available for Trading' bouncing all over the place. For example right now it quotes me a JPY/EUR exchange rate of 0.00618 the equivalent of 161.81 EUR/JPY. Now that's a measly 106 pips away from market price that they quote correctly in the very same window. I checked IDEAL's prices also, its 2 pips +/- IDEALPRO (not always the case, this morning I saw IDEAL's prices a 100 pip away from IDEALPRO). The trouble with all this is that if my 'Available for Trading' dips below 0 IB liquidates my positions and if they do they will liquidate me at these despicable prices. In effect I would have to decrease my leverage regardless of the market price, just to avoid a margin call. So, does anybody know how IB calculates the 'Available for Trading' amounts and how on earth do they come up with the 'Exchange rates' in the 'Market Value' section?