Providing a Model for Forecasting the Stock Price Crash Risk in Tehran Stock Exchange on the basis of EXTR-SIGMA & NCSKEW

Document Type : Original Article


1 PhD candidate in Financial Engineering, department of finance, central tehran branch, islamic azad university, tehran, iran

2 Assistant Professor, Department of Business Administration, Central Tehran Branch, Islamic Azad University, Tehran, Iran


Stock price crash have been described as a severe negative event in stock returns, causing major losses in shareholders' wealth and a loss of confidence in the capital market. This study sought to investigate the stock price crash risk of 114 companies listed on Tehran Stock Exchange within the years 2009 to 2018 on the basis of Bradshaw et al EXTR-SIGMA (2010) and Chen et al. NCSKEW (2001) criterion. Accordingly, the researcher first calculated the stock prices crash risk based on two different criterion and then tested the internal and external factors of the company on crash risk. The statistical model used in this study encompassed regression model and the data type is panel data type. Based on the findings of the present study, there is a significant relationship between the dependent variables (the first and the second criteria for calculating and predicting stock price crash), the factors within the company (company features and financial ratios) and external factors such as dollar market price, volume of shares traded, Iranian oil price and global gold price.


  • Ahmadpour Ahmad, Zare Behnamiri, Heidari Rostami (2014) "Investigating the effect of company characteristics on stock price crash risk (companies listed on the Tehran Stock Exchange)", Year 7, No. 28, p. 29 -45.
  • ‌Ansari, Z. and Rezvanipoor, "The Impact of Interest Rate and Inflation Rate on Stock Price Index", Master’s Thesis, Zahedan Technical and Vocational University, 2016.
  • Anvari Rostami Ali Asghar, Azar Adel, Nowruzi (2014) "EPS predictive modeling using neural-fuzzy networks" Financial accounting and auditing research, year 6, number 23, pp. 1- 15.
  • Asadi Gholamhossein, Kazemi (2019) "The relationship between stock price crash risk using negative stock market skewness criterion and dividend policy in companies listed on the Tehran Stock Exchange" Journal of Management Perspective, Volume 9, Number 28, Winter 1398.
  • Badri, A., Doloo, and Dori Nokorani "Study of the effect of macroeconomic variables on stock market performance, Financial Management Perspective, No. 13, 2016.
  • Chen, J., Hong, H. and Stein, J. (2001). “Forecasting Crashes: Trading Volume, Past Returns, and Conditional Skewness in Stock Prices”. Journal of Financial Economics, 61 (3): 345-381.
  • Chen,x.,Zhanf.,F,Zhang.,(2015). CEO Duality  and  Stock  Price Crash  Risk, working paper ,[online],:www.
  • Chung, K.H. Elder, J. Kim, J.C. (2010). Corporate Governance and Liquidity. Journal of financial and quantitative analysis, 45(2), 265-291.
  • Delshad Afsaneh, Tehrani (2019) "A Study of the Role of Management Features on the Falling Stock Price Ceash Risk of Companies Accepted in the Stock Exchange of Tehran Stock Exchange" Quarterly Journal of Financial Strategy, Volume 7, Number 4 - Consecutive Issue 27, Winter 1398, pp. 82-102.
  • Doloo Maryam (2017) "Excessive pricing, lack of transparency and stock price crash" Journal of Financial Management Perspectives, Spring 2017, No. 17, pp. 87-111.
  • Fallahshams Mirfeiz, Ebrahimi, Sarvolia, Motalebi (2010) ‌ "Analytical Study of Global Opportunities and Threats on the Iranian Stock Exchange" Quarterly Journal of Financial Management and Accounting Perspective, Volume 8, Spring 2011, No. 31, pp. 131 -150.
  • Fazalollahi Dehkordi Zahra, Ahmadi (2018) "stock price crash risk and its effect on product market competition" Journal of Accounting and Auditing Research, Volume 8, Number 3 85.
  • Foroughi Dariush, Sakiani (2017) "The effect of dividends paid on future stock price crash risk considering the effect of free cash flow and information asymmetry" Journal of Applied Research in Financial Reporting, Volume 6, Number 2 - Sequential Issue 11, pp. 131-158.
  • Habib,A. Hasan, M.(2017), Business Strategy, Overvalued Equities, and Stock Price Crash Risk, .(2017)Working paper,[online],
  • Hao, D., Qi, G & Jing, W. Corporate Social Responsibility, Internal Controls, and Stock Price Crash Risk: The Chinese Stock Market. Sustainability Journal. 2018, 10, 48-75.
  • He, G., Ren, H. (2017). Financial constraints and future stock price crash risk.
  • Hejazi Rezvan, Khatami (1399) "The Relationship between Stock Price Crash and Sustainable and Transient Institutional Shareholders" Quarterly Journal of Financial Accounting and Auditing Research, Vol. 12, No. 45, Spring 1399, pp. 81-102.
  • G., Wang, Y. (2018) Political connections and stock price crash risk: The role of intermediary information disclosure. China Finance Review International, 8, 140-157.
  • Hutton, A.P., Marcus, A.J., Tehranian, H. (2009), Opaque Financial Reports, R2, and Crash Risk.Journal of Financial Economics 94(1): 67-86.
  • Jahankhani Ali, Yazdani (1371) "‌Exploring the effect of industry type, size, commercial risk and operational leverage of companies on the use of financial leverage in companies listed on the Tehran Stock Exchange" Quarterly Journal of Management Studies, No. 2 , Pp. 23-38.
  • Jahankhani Ali, Abdo Tabrizi (2003) "Theory of Efficient Capital Market (Collection of Capital Market Articles)" Pishbard Publications, Summer, p. 121.
  • Jin, L., & Myers, C.S. (2006)”R2 around the world: new theory and new tests”Journal of Financial Economics, 79(2), 257-292.
  • Kani, Abbas, (2005), "Advanced Technical Analysis", Abbas Kani Publisher.
  • Kim, J.; Zhang, L. Accounting Conservatism and Stock Price Crash Risk: Firm-Level Evidence. Contemp. Account. Res. 2016, 33, 412–441.
  • Kourehpazan Amin, (2005) "Theoretical Principles of Fuzzy Collections and Its Applications" University Jihad Publications, Amir Kabir Industrial Unit.
  • Miadi, Mahdieh (2012) "A Study of the Relationship between Liquidity Risk and Capital Asset Pricing in Tehran Stock Exchange", M.Sc. Thesis, University of Tehran.
  • Mohammadi, A., Darvishi, Cheraghian "Investigation of interest rate and currency fluctuations on stock returns of banks listed on the Tehran Stock Exchange", International Conference on Management Economics and Agricultural Sciences, Anzali Free Zone, International Center for Academic Communications, Development of University Entrepreneurs, 2015.
  • Rahnamaei Roodpashti Fereydoun and Salehi (2010), "Schools and Financial Theories and Accounting" First Edition, Tehran, Islamic Azad University Press.
  • Razmian, Z., and FallahShams,M., Khodaei,M.,(2020), "Forecasting Crash risk using Business Strategy, Equity Overvaluation and Conditional Skewness in Stock Price", International Journal of Finance and Managerial Accounting,Vol.4, issue16, pp.13-25.
  • Sarkanian, Javad and Raei (2015) "Study of the relationship between liquidity and stock returns in the Iranian stock market" Journal of Financial Management Perspective, Fall, 2015, No. 11, pp. 9-26.
  • Sensoy, A., and Sobaci,C., "Effects of volatility shocks on the dynamic linkages between exchange rate, interest rate and the stock market: The case of Turkey", Economic Modelling, Vol. 43, pp. 448-457, 2014.
  • Shaghaghi, F., and Pakmaram,A., Badavarnahandi,Y.,(2019), "The Role of Institutional Quality in Forecasting the Total Stock Price Index:Case Study of Developing and developed Countries", International Journal of Finance and Managerial Accounting,Vol.4, issue14, pp.73-89.
  • Sinaei, Hassan Ali, Teymouriasel, Mortazavi (2005), "Prediction of Tehran Stock Exchange Index Using Neural Networks" Accounting and Auditing Reviews, No. 41, pp. 59-84.
  • Sobhi Maryam, Ali Nejad Sarokolai (2016) "The effect of managers' overconfidence on capital structure" Quarterly Journal of Financial Accounting and Auditing Research, Volume 8, Number 31, pp. 93-109.
  • VardiPanah, Saeed (2014), "Study of the effect of acceleration and liquidity factors in increasing the explanatory power of Fama and French model with evidence from Tehran Stock Exchange", M.Sc. Thesis, University of Tehran.