Different types of measures that further complicate investors first. The confusion is that people far from the stock market as a whole, or unwise investments. While playing the public will, what kind of measures must be available and what it means!
Common stock is a term you hear very often. Anyone can sell common shares, regardless of age, income, age or financial situation. The shares are mainly owned by investing some Companies as the company grows and makes money, increases in stocks. In addition, if the company goes wrong, or goes bankrupt, the value of their shares. Holders of ordinary shares are not involved in the daily operation of a business, but they have the opportunity to choose the board of directors.
In collaboration with the Common Shares, there are several classes of shares. The different classes of shares of a company are often Class A and B. The first class, class A, essentially gives the owner more votes per share to holders of Class B. The availability of several classes of shares of a company to exist since 1987. Many investors have prevented more than one class, and people more of a class are not as common shares.
The high level of stocks is, of course, the preference shares. The preferred shares are not really an action. It is a mixture of population and a bonus. Holders of preferred shares of the claims on the assets of the company in bankruptcy, holders of preferred shares and receive the proceeds of the profits of a company before the ownership of shares. If you believe that you preferred shares preferred, aware that the company is usually entitled to repurchase shares to holders of shares and paying dividends to stop.