Stoploss is part of MM (Money Manageman). Stoploss is functioned to stem losses when wrong analysis. But many traders don't install SL because they still hope the price will return according to the op (open position). Especially if the price touches SL and returns according to the OP clearly disappointing traders, especially for beginner traders. Here I emphasize that SL is a trading defense to deal with price movements that are not in accordance with the analysis, especially in the price movement that reaches high rings. This we often encounter mainly in TF Daily. By installing SL Trader will be able to keep it and manage it well. By installing SL phosikological conditions traders are easily guarded, not emotional and able to control themselves. So can be able to run a trading system with discipline. Therefore I concluded that SL was the life of trading.