An investment portfolio is a kind of index, a collection of stocks of different national and foreign companies. The portfolio can be aggressive and conservative. The first option is associated with increased risk and brings the investor a large profit, therefore it is suitable for traders who are willing to take risks and are able to calmly perceive significant percentages fluctuations in the exchange rate. A conservative portfolio is rather passive, it brings more trust, though, is less profitable for an investment portfolio builder.