Price quoting for Forex pairs on IdealPro is subject to an industry convention whereby the relationship between the first pair (transaction currency) and second pair (settlement currency) is fixed and cannot be inverted.  Considering, for example, pairs involving the USD, the following are examples where the USD is listed as the transaction currency: USD.CAD, USD.JPY and USD.CHF.  Similarly, the GBP.USD, EUR.USD and AUD.USD are examples where the USD is listed as the settlement currency (a complete listing of quoting conventions for pairs executable via IdealPro can be found by typing IdealPro into the IB website search engine). 

These quoting conventions introduce special considerations when one is attempting to close out a specific cash balance denominated in a settlement currency which, based upon the current quote, may not be able to be closed out in its entirety.  To illustrate, assume the following transactions: 

Day 1: Account holder maintaining USD 300,000 in a USD base currency account buys 10,000 shares of stock XYZ which is denominated in CAD at a price of 50.00.  Also assume that the account holder does not convert USD into CAD prior to the stock purchase and therefore borrows the CAD necessary to settle the trade from IB. The USD.CAD closes at 1.0526 and XYZ at CAD 50.00 (no unrealized gain or loss). The end of day account balance is as follows:

Day 2: Assume no trade activity, the USD.CAD closes that day at 1.0309 and XYZ closes at CAD 52.00. (unrealized gain of USD 19,400.52). The end of day account balance is as follows:

Day 3: Account holder sells the 10,000 shares of XYZ at CAD 53.00 and the USD.CAD closes unchanged at 1.0309 (unrealized gain of USD 29,100.79).  The end of day account balance is as follows:

Day 4: Account holder seeks to close out the CAD 30,000.00 cash balance through the sale of CAD vs. the purchase of USD. Due to the quoting convention of this pair in which the order must be specified in a quantity of USD, the account holder is required to determine the USD equivalent of CAD 30,000.00 at the desired trade price.  Assuming the account holder seeks to close the position at the market price of 1.0253 an order to buy 29,259 USD.CAD would be entered which, if executed, will result in a residual long CAD balance of 0.75. The end of day account balance is displayed below:

Note, however, that in accordance with IB's policies regarding nominal Forex balances, residual balances of less than USD 5.00 equivalent will automatically be converted into the account holder's base currency upon settlement assuming no subsequent trade activity in that non-base currency has taken place in the interim. This is intended to minimize the actions required of the account holder to convert nominal non-base currency balances back into the designated base currency and also to convert fractional balances which could otherwise not be converted. IB does not charge a commission for these automated conversions.