Effect of Corporate performance on the Future Stock price crash risk

One of the main concerns of investors is the Stock price crash risk in the market and research in this field may be so important for the Capital. Increasing stock price crash risk makes investors pessimistic about investing in the securities exchange and this may cause them to go out of the capital market. This research studied the effect of the firm’s operation and the future risk of price fall of the equities in the firms accepted by the securities exchange of Tehran between 2012-2016. The sample includes 500 observation. The independent variables consist of rate of the return of the assets, ratio of market value to office value of the firm and Toobin’s Q index and the profit of each equity and the depended value is the future stock price crash risk. The findings suggested that there is negative significant relation between the firm’s operation (the rate of return of the assets, the ratio of the market value to office value of the firm, the Toobin’s Q index and the profit of each equity) and future stock price crash risk in the firms accepted by the securities exchange of Tehran. In other words we can anticipate the future mutation or stock price crash risk with looking at the firm’s operation and take action to buy or sell that firm’s equities.