It is index pointed out the economic development of the country by the Stock Exchange is both a source and concentration of capital investment, which is a performance that has the interest of the business to the capital. This will help to support its capital markets and the overall economy of the country, so the securities trading in pays will be important and related to the direction and trend of economic developmentIt may be said, however, that the development of the Stock Exchange of Thailand, and in the index of economic development of the country in which one of the important