If you are new to stock trading, you are likely to make mistakes and lose money. You must be sure that the money you invest is disposable or in other words, you must have some spare money which you can afford to lose. Or, at least you should be able to hold on through the tough times.Quite possibly the fall in your stock, though seemingly prolonged, may yet be temporary. The stock may have strong fundamentals and may rise up once the existing market forces that have pulled it down go away.