It will depend on the investor's timing. The volatility often mark a detrimental effect on your certain holding since most of the time these days, the value goes down than it goes high. But once you are able to find the right timing on selling, you will learn how beneficial the volatility can be like for example, you bought some of your investment for a low price but after holding for a long while, a bull run takes place and you can sell it in a higher price. Just learn to be patient and always make sure that your decision making is not affected by your emotions for it usually leads you to mistakes which you'll later on regret.