Investigating 36,848 share repurchases made by 352 French firms for the period between 2000 and 2002, Ginglinger and Hamon (2007) find that bid-ask spreads widen and depths narrow on repurchasing days. They explain that open market share repurchases decrease liquidity primarily because market participants can detect the presence of better-informed managers. These findings, which indicate that stock repurchases have negative impacts on liquidity, are therefore consistent with the information asymmetry hypothesis.