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Concentrated Opening Volume: Market Closure Or Strategic Trading?


  • Ebenezer Asem


The NYSE extended its trading hours on September 30, 1985, by opening at 9:30 a.m. rather than at 10:00 a.m. Whereas the market closure models predict that the extension would result in lower relative volume and return variability at the open, the strategic trading models predict that the opening volume and return variability would remain relatively the same. Evidence around the extension suggests that the relative opening volume and return variability declined initially but increased gradually to their pre-extension levels. This evidence favors the strategic trading model explanation of the heightened opening volume. 2007 The Southern Finance Association and the Southwestern Finance Association.

Suggested Citation

  • Ebenezer Asem, 2007. "Concentrated Opening Volume: Market Closure Or Strategic Trading?," Journal of Financial Research, Southern Finance Association;Southwestern Finance Association, vol. 30(2), pages 321-334.
  • Handle: RePEc:bla:jfnres:v:30:y:2007:i:2:p:321-334

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    References listed on IDEAS

    1. Christiansen, Charlotte & Lund, Jesper, 2002. "Revisiting the shape of the yield curve: the effect of interest rate volatility," Finance Working Papers 02-3, University of Aarhus, Aarhus School of Business, Department of Business Studies.
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