Resumen
In this research the relationship between institutional ownership and profit sharing policy with price efficiency and fluctuation in Tehran?s stock exchange is studied. Data extraction is done by Rahavard-Novin software and research data analyze is also done by E-views software. research result indicates that there is a significant relationship between institutional ownership and stock price fluctuation in accepted firms at Tehran?s stock exchange is approved and the main hypothesis is rejected, and there is a significant relationship between institutional ownership and stock returns in accepted firms at Tehran?s stock exchange is approved and the main hypothesis is rejected and also the existence of a significant relationship between institutional ownership and profit sharing returns in accepted firms at Tehran?s stock exchange is rejected and the main hypothesis is approved.Keywords: Institutional Ownership, Shared Dividend Policy, Stock Return, Stock Price VolatilityJEL Classifications: E44, G23