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The impact of closing mechanism changes: evidence from the Shanghai stock market

Dan Ma (College of Management and Economics, Tianjin University, Tianjin, China)
Chunfeng Wang (College of Management and Economics, Tianjin University, Tianjin, China)
Zhenming Fang (College of Management and Economics, Tianjin University, Tianjin, China)
Ziwei Wang (College of Management and Economics, Tianjin University, Tianjin, China)

China Finance Review International

ISSN: 2044-1398

Article publication date: 18 August 2020

Issue publication date: 27 April 2021

194

Abstract

Purpose

The purpose of this paper is to empirically examine the impact of closing mechanism changes on market quality, investor trading behavior and market manipulation in the Shanghai stock market.

Design/methodology/approach

A dummy variable is constructed indicating whether the closing mechanism is call auction or continuous auction. Market quality is measured from aspects of liquidity, volatility and price continuity; investor trading behavior is scaled by order timing and order aggressiveness, and a price deviation indicator is the proxy of manipulation. Using panel regression, this study examines the impact of closing mechanism changes based on intraday transaction data from the Shanghai stock market.

Findings

The conclusions are as follows: First, market quality improves after the closing mechanism is reformed in terms of liquidity, volatility and price continuity. Second, order strategy changes significantly in the closing call market, and investors trade more aggressively in the continuous trading period before closing. Third, the closing call mechanism restrains the closing price manipulation and thus prompts an efficient closing price.

Originality/value

This paper examines the policy effects of closing mechanism changes from aspects of market quality, trading behavior and price manipulation, providing pieces of evidence for trading mechanism design and market supervision in emerging markets.

Keywords

Acknowledgements

This work is supported by the National Natural Science Foundation of China [Grant number: 71671122].

Citation

Ma, D., Wang, C., Fang, Z. and Wang, Z. (2021), "The impact of closing mechanism changes: evidence from the Shanghai stock market", China Finance Review International, Vol. 11 No. 2, pp. 259-281. https://doi.org/10.1108/CFRI-04-2020-0041

Publisher

:

Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

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