In this gradute thesis focus in on quality explanation stock and stock exchange. First of all it is important to undersdand what a stock is and what is her funcion. Stock market is central place of trading in securities. The price of stoks depends of more things and usually goes up and down. Depending on how the company performs and how investors think the company will perform in future. It is particularly important to quality explane all about Zagreb Stock Excange. Everything about stock exchange business in period of foundation till now. Like we know the most important role of every Stock Exchange is to ensure a higher efficiency, low costs, greater transparency and better business condition for all members. The Stock Exchanges affect economic development, so it is important to understand big part of stock exchange in history and influence it was on our economic development. This work includes all terms connected to stock market. Like investors, securities, brokers, transactions, strategies. On the stock market every day is traded with a several types of varius securities. Every securitie has its role and each shareholder knows it. It also will be talk about different business strategies witch excist on stock market. We found out all adventages and disadventages for each od them. At the end of work it will be only talk about Zagreb Stock Exchange, business that take place there, investitors and the future of business on that stock exchange.