Do Managers Trade on Public or Private Information? Evidence from Fundamental Valuations
University of Amsterdam - Amsterdam Business School (ABS)
European Accounting Review, Vol. 22, No. 3, pp. 427-465, 2013
Using accounting-based (residual income) valuations, this study examines the extent to which abnormal returns after insider share trades are explained by private information versus mispricing of public information. For a sample of insider trades in the Netherlands (1999-2008), I find that managers’ share purchase decisions are associated with positive future abnormal returns as well as equity undervaluation. Even though undervaluation results in predictable price increases, positive abnormal returns following purchases persist after controlling for fundamental valuations. Thus, this study provides evidence on the sources of managers’ personal trading gains and suggests that positive abnormal returns after insider share purchases reflect both private information and managers’ responses to market mispricing of public information.
Number of Pages in PDF File: 58
Keywords: insider trading, mispricing, residual income valuation, private information
JEL Classification: D82, G14, M41
Date posted: November 25, 2011 ; Last revised: August 23, 2013