Trading Mechanisms and Stock Returns: An Empirical Investigation

  title={Trading Mechanisms and Stock Returns: An Empirical Investigation},
  author={Yakov Amihud and Haim Mendelson},
  journal={Journal of Finance},
This paper examines the effects of the mechanism by which securities are traded on their price behavior. We compare the behavior of open-to-open and close-to-close returns on NYSE stocks, given the differences in execution methods applied in the opening and closing transactions. Opening returns are found to exhibit greater dispersion, greater deviations from normality and a more negative and significant autocorrelation pattern than closing returns. We study the effects of the bid-ask spread and… 
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