Information trading around open market share repurchases: evidence from the Taiwan Stock Exchange

Robin Chou and Yi-Min Yu

Applied Economics Letters, 2011, vol. 18, issue 10, 973-981

Abstract: We examine the information trading around open market share repurchases on the Taiwan Stock Exchange (TSE). Because of the distinctive regulations of share repurchases in Taiwan, our samples offer a unique opportunity to test changes in information trading during share repurchases. We show that the risk of information trading significantly increases during the repurchase execution period and reverts back in the post-expiration period. It is likely that some uninformed traders leave the market in the execution period, in anticipation of higher information uncertainties. Therefore, the remaining uninformed traders collectively face higher possibility of trading with informed traders.

Date: 2011
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DOI: 10.1080/13504851.2010.520662

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