Conditional effects of higher order co-moments in asset pricing : evidence from Borsa Istanbul

This paper explores how systematic higher order moments (co-skewness and co-kurtosis) are priced in Borsa Istanbul. We tested the significance of higher order co-moments and analyzed their contribution to the standard capital asset pricing model and the Fama and French (2015) 5-factor model. We used a two-stage method to analyze the weekly returns of beta and size-sorted portfolios and individual stocks over the sample period from June 22, 2007 to November 15, 2023. We also used models conditional on market movements. The findings reveal that co-skewness has statistically significant effects on portfolio returns in Borsa Istanbul, especially in up markets. We also present the statistically significant effects of co-kurtosis on individual stock returns in both up and down markets.