A trader exits a position, that is complete the trade, or leaves the market, when he executes the opposite trade by which he started. if he bought USD/CAD he then sells USD/CAD. Note that the trader could also have sold USD/CAD initially, and then bought USD/CAD later to exit the trade and close the position. This part is very much important for every trader I am doing this well and trades with ECNCAPITAL.COM.