It doesn't take a rocket scientist to figure out that any broker who guarantees stop losses will go out of business. Yes they do advertise guaranteed stops. But your stops are only guaranteed in situations when there wouldn't be any stop loss slippage in the first plac.e Some brokers/fans argue that spot FX is better than Currency Futures because you're "protected" by the guaranteed stop. This is NOT true. During the times when you need the "protection", your broker will never ever guarantee your stops. This is why... Anyone remember the big incident over at Refco/FXCM last year when many profitable trades were "rollbacked"? Any market, especially Forex, WILL spike during big news announcement. Say NFP (Non-Farm Payroll). There is a sure-fire method to make money 100% of the time off brokers who guaranteed their stops and this was what Refco/FXCM was hit with last year that caused them to ammend their "guaranteed stops" advert with "gauranteed stops...most of the time". Its called a straddle. Straddle 5 pips above and below the price 1 minute before news announcement. Set a stop loss of say 10 pips for each side. Once the 100-200pip spike happens, one side will be 100-200 pips in the green while the other side will get stopped out for 10 pips. Free money. This is the reason why no one is stupid enough to guarantee your stops.