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

Nirodha Imali Jayawardena, Akihiro Omura and Bin Li

International Journal of Managerial Finance, 2019, vol. 15, issue 4, 658-668

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: Stock market; Australian market; Intraday data; Trading time (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:eme:ijmfpp:ijmf-06-2018-0184

DOI: 10.1108/IJMF-06-2018-0184

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