2.It lets you know that decision was wrong and now is the time to get out of stock if one has to survive in day trading.
3.Applying stop loss requires lion's heart as it is human tendency to avoid taking losses.
4.You have won even if you lose monetarily by applying the stop loss as this application will ensure your long term presence in the stock market.
5.Long term investors can also apply stop loss at predetermined levels to ensure preservation of the capital.