the basic function of stop loss is to limit a loss, bro and whose name is the forex market, it will occasionally move freely and unreasonably outside the analysis and predictions of pro traders even though that's where traders who use or install stop loss will realize how important it is to apply stop loss in every transactions carried out and these conditions can only be achieved when the market moves unreasonably and erratically, the additional function of installing stop loss is to increase discipline, especially discipline in applying MM and RM.