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Unobserved Actions of Mutual Funds

Marcin Kacperczyk, Clemens Sialm () and Lu Zheng

Review of Financial Studies, 2008, vol. 21, issue 6, 2379-2416

Abstract: Despite extensive disclosure requirements, mutual fund investors do not observe all actions of fund managers. We estimate the impact of unobserved actions on fund returns using the return gap--the difference between the reported fund return and the return on a portfolio that invests in the previously disclosed fund holdings. We document that unobserved actions of some funds persistently create value, while such actions of other funds destroy value. Our main result shows that the return gap predicts fund performance. The Author 2007. Published by Oxford University Press on behalf of The Society for Financial Studies. All rights reserved. For Permissions, please email:, Oxford University Press.

Date: 2008
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Handle: RePEc:oup:rfinst:v:21:y:2008:i:6:p:2379-2416