stop loss is mainly used by my novice investors or if one day you go to a place that does not currently exist in the market then you can improve your trading through profit taking or stop a loss of a certain amount. stop loss is one type of scalping in forex. and Stop loss is a very important tool that must be considered by every trader. A trader cannot trade without using his stop loss if he wants to save his account from a margin call. I have seen a professional trader lose all his capital because he failed to use stop loss for only one trade.