Intraday anomalies and market efficiency : a trading robot analysis

Caporale, Guglielmo Maria, Gil-Alana, Luis A., Plastun, Alex and Makarenko, Inna (2014) Intraday anomalies and market efficiency : a trading robot analysis. Centre for International Capital Markets discussion papers, 2014 (09). pp. 1-22. ISSN 1749-3412

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Abstract / Description

One of the leading criticisms of the Efficient Market Hypothesis (EMH) is the presence of so-called "anomalies", i.e. empirical evidence of abnormal behaviour of asset prices which is inconsistent with market efficiency. However, most studies do not take into account transaction costs. Their existence implies that in fact traders might not be able to make abnormal profits. This paper examines whether or not anomalies such as intraday or time of the day effects give rise to exploitable profit opportunities by replicating the actions of traders. Specifically, the analysis is based on a trading robot which simulates their behaviour, and incorporates variable transaction costs (spreads). The results suggest that trading strategies aimed at exploiting daily patterns do not generate extra profits. Further, there are no significant differences between sub-periods (2005-2006 - "normal"; 2007-2009 - "crisis"; 2010-2011 - "post-crisis").

Item Type:	Article
Uncontrolled Keywords:	Centre for International Capital Markets discussion papers; CICM discussion papers; efficient market hypothesis; EMH; intraday patterns; time of the day anomaly; trading strategy
Subjects:	300 Social sciences > 330 Economics
Department:	Guildhall School of Business and Law
Depositing User:	Mary Burslem
Date Deposited:	16 Apr 2015 13:34
Last Modified:	15 May 2018 09:32
URI:	https://repository.londonmet.ac.uk/id/eprint/377

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