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The early bird and the late bird: which catches more worms in Australia?

Nirodha Imali Jayawardena (Business School, Griffith University, Nathan, Australia)
Akihiro Omura (Graduate School of Business Administration, Meiji University, Tokyo, Japan)
Bin Li (Business School, Griffith University, Nathan, Australia)

International Journal of Managerial Finance

ISSN: 1743-9132

Article publication date: 12 April 2019

Issue publication date: 31 July 2019

201

Abstract

Purpose

The purpose of this paper is to examine what the optimal time is in a typical trading day for investors to buy/sell stocks in the Australian stock market.

Design/methodology/approach

The study mainly focuses on the S&P/ASX200. Each trading day, between 10:00 a.m. and 4:00 p.m., is divided into 30-min blocks. The effectiveness of easily implementable trading strategy to purchase the index in the morning and sell at the close is tested. The study controls for the excess overnight price volatility to improve the effectiveness of the investment strategy. This trading strategy is compared against other 66 possible day-trading combinations.

Findings

The results show that the trading strategy of buying in the first 30 min of the trading session and close off the position during the last 30 min obtains higher returns than other 66 strategies.

Practical implications

The day-trading strategy proposed in this study is very simple and therefore can be easily implemented by investors including individual investors.

Originality/value

To the best of our knowledge, this is the first study which constructs a trading strategy using the J- or U-shaped intraday return pattern.

Keywords

Citation

Jayawardena, N.I., Omura, A. and Li, B. (2019), "The early bird and the late bird: which catches more worms in Australia?", International Journal of Managerial Finance, Vol. 15 No. 4, pp. 658-668. https://doi.org/10.1108/IJMF-06-2018-0184

Publisher

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Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited

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