Reviewing the Effect of Investor's Behavioral Bias on IPO Return and the Roll of Earning Quality in Reducing this Effect

This study aims to investigate IPOs return from the Investors’ bias point of view. Moreover, we intend to examine the reducing effect of investors’ bias on IPOs return through earning quality. We used the data from 93 companies of IPOs during 2007-2017 offered in TSE. We used Expected Skewedness as lottery preference measurement tool, and calculated IPOs return using BAH Return on a 7-day period. Modified Jones Accrual Quality model was used to measure earning quality. The hypotheses were tested using pooled cross-sectional regression. Our findings showed that there is a direct relationship between the investors’ preference for Skewedness and IPOs return. Besides, earning quality diminishes this effect. Results also showed that investors’ lottery preference has direct effects on IPOs return and more accounting quality in the year just before IPO, could reduce this behavioral bias.