The topic of this final thesis is financial markets and investment funds. The financial market is part of the overall financial system and is the place where financial instruments are traded and the supply and demand for instruments are encountered. It can be primary and secondary, on the primary market it is trading with securities that are emitted for the first time, and on the secondary market it is trading with "used securities". The financial market is a branch of the money market on which the short-term securities are traded with maturity up to one year, and the capital markets on which long-term securities are traded. The purpose of the financial market is to direct the surplus of liquid assets by enterprises, households, to other companies, households with a shortage of liquid assets. Investment funds are financial organizations that collect funds from their investors and market them in short-term and long-term investments, investment funds today represent the most important drivers of financial markets.