Risk
Any investment entails a certain risk. While some securities have performed very well over a long period, others have performed poorly. Historical returns provide no guarantee for future returns. Share prices may fluctuate from day to day, and some fluctuate more than others.
Margin account is a powerful financial tool which can increase your potential returns, but also cause greater losses. If the value of your portfolio declines, your potential losses will be higher than if you had not borrowed funds to invest. DNB Luxembourg may be forced to sell your positions if there is a sharp drop in share prices.