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Journal of Finance Vol. 47 No. 5 1992

Trading Halts and Market Activity: An Analysis of Volume at the Open and the Close

Mason S. Gerety1,2; J. Harold Mulherin1,2

1 Georgetown University · 2 Ministry of Interior

Abstract

This paper analyzes how the daily opening and closing of financial markets affect trading volume. We model the desire to trade at the beginning and end of the day as a function of overnight return volatility. NYSE data from 1933–88 indicate that closing volume is positively related to expected overnight volatility, while volume at the open is positively related to both expected and unexpected volatility from the previous night. We interpret the symmetric response of trading at the open and the close to expected volatility as being due to investor heterogeneities in the ability to bear risk when the market is closed. This desire of investors to trade prior to market closings indicates a cost of mandating marketwide circuit breakers.

DOI
10.1111/j.1540-6261.1992.tb04682.x
Volume
47
Issue
5
Pages
1765-1784
Language
en
Sources
openalex crossref

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