Value relevance of accounting earnings associated with normal and abnormal returns

The value relevance of earnings and the changes related to normal and abnormal returns have been studied in this research. Thus، according to theory and literature، for data analysis، five regression models were used. Statistical Society consists of accepted companies in Tehran Stock Exchange from 1384 to 1389 and due to current limitations the studied samples include 74 companies. Results from data analysis show that accounting earnings has Value relevance for users. In other words، both annual normal and abnormal returns have a significant relation with the accounting earnings. It means accounting earnings has a direct and significant relation to normal return، but also has a negative and significant relation to abnormal return. The announcement of accounting earnings effect on stock price and it Causes positive or negative return.