Examining the Relationship between the Level of Disclosure of Accounting Informationand the Fluctuation of the Price of Stock, in the Companies Acceptedin Tehran’s Stock Market

Accounting information that is used by most of investors and creditors is very importantfor their decision making. Information about accepted companies in stock market gets revealedannually to public for decision making. So in this research, due to the importanceof information and the disclosure of information by companies and its effect on the priceof the stock, the relationship between the level of disclosure and the fluctuation of theprice of stock of the companies accepted in stock market.Statistical society of this research was chosen between accepted companies in stock marketwhich were 448 by the end of 2008. Statistical sample includes 72 companies whichwere chosen randomly from the statistical society.This research includes one question, one theory. For accumulating different variables ofthis research the available information of the Tehran’s Stock Market Organization wasused and for examining the theory the index of Pierson relativity was used. By noticingthe analytical statistics the research questions were answered and by examining the theoryat 95% of security level the main theory of this research was confirmed and the result obtainedshowed a meaningful relationship between disclosure of accounting informationand fluctuation of the stock price.