What are shares?
An investor who buys shares in a company becomes a shareholder, who is co-owner of the company. Shareholders should therefore be prepared to take risks. You can benefit from the company's profits when it’s doing well, but you could also lose money when it’s performing less well, since the value of its shares may decrease significantly. In the worst-case scenario, a company’s shares can even lose all their value, if it goes bankrupt for example. You can find more information in the « Shares » fact sheet.