Most of the investor make mistake is of selling everything. Now if u have bought at 40 or below 50 or below 100, can't you keep 5-10% ? Most of the time, our decision is always wrong. We sell and stock becomes Huge Multibagger!! We all know that and we have experienced that too but still we make same mistake of selling all!! When the buying price is Low, keep 5-10% , in case we go wrong in out selling decision. Keep this always in your mind. Don't sell out evrything!! Untill , the stock has become 10x and more and you want to sell.... But just seeing negatives, don't sell 100%!! Keep 10% with you!!