A stock is a legal symbol of ownership in a business. When you buy stock, you are actually buying part-ownership of the business. In other words, you become a shareholder. A business will typically spread ownership to hundreds or even thousands of shareholders. Shares are sold when the company wishes to get cash. In a small business, it may be said that the owner has 100% of all shares. However, when a business grows beyond a certain size, it may require capital for expansion and selling shares is the easiest way to do that.
Most stock holders do not really have much say in how the business is run because their ownership proportion is negligible. In order to make a difference, you must own lots of shares or you must work with several smaller shareholders. Now days, buying stock has become more of an investment rather than trying to run the business. You simply buy stock and wait for the company to grow. This will appreciate the stock value and you make money by selling it. Or you could simply make do with the percentage of profits the company gives you based on your shares.
The stock exchange is the place where people trade stocks. The three important share...