This final paper gives an overview of long-term securities on the capital market. It explains the organized capital markets, i.e. the stock market as the central securities trading venue. The terms related to the stock exchange, securities, stock market and stock exchange intermediaries are explained. Long-term securities can be sold and bought on the stock exchange as an organized supply and demand for the securities market. With regard to the development of technology, the securities exchange has almost completely shifted to the virtual electronic form of operations, where securities have electronic format. Because of everyday trading in securities, the stock market situation is constantly changing, from day to day, from second to second. The stock exchange intermediaries and the members of the exchange often need to keep track of the stock market so that they can sell at the right time when prices increase or buy when the prices fall. As an example of the functioning capital market (i.e. the stock market), the trading of securities on the Zagreb Stock Exchange is presented in this final paper.