Witching days and abnormal profits in the us stock market

AbstractThis paper examines price effects related to witching days in the US stock market using both weekly and daily data for three major indices, namely the Dow Jones, S&P500 and Nasdaq, over the period 2000–2021. First it analyses whether or not anomalies in price behaviour arise from witchin...

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Main Authors: Guglielmo Maria Caporale, Alex Plastun
Format: Article
Language:English
Published: Taylor & Francis Group 2023-12-01
Series:Cogent Economics & Finance
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/23322039.2023.2182016
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author Guglielmo Maria Caporale
Alex Plastun
author_facet Guglielmo Maria Caporale
Alex Plastun
author_sort Guglielmo Maria Caporale
collection DOAJ
description AbstractThis paper examines price effects related to witching days in the US stock market using both weekly and daily data for three major indices, namely the Dow Jones, S&P500 and Nasdaq, over the period 2000–2021. First it analyses whether or not anomalies in price behaviour arise from witching by using various parametric (Student’s t-test, and ANOVA) and non-parametric (Mann-Whitney) tests as well as an event study method and regressions with dummies; then it investigates whether or not any detected anomalies give rise to profit opportunities by applying a trading simulation approach. The results suggest the presence of the anomaly in daily returns on witching days which can be exploited by means of suitably designed trading strategies to earn abnormal profits, especially in the case of the Nasdaq index. Such evidence is inconsistent with the Efficient Market Hypothesis (EMH).
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spelling doaj.art-ae78245a708d49a5976cba2871f309982023-10-17T10:51:06ZengTaylor & Francis GroupCogent Economics & Finance2332-20392023-12-0111110.1080/23322039.2023.2182016Witching days and abnormal profits in the us stock marketGuglielmo Maria Caporale0Alex Plastun1Department of Economics and Finance, Brunel University London, London, UKSumy State University, Sumy, UkraineAbstractThis paper examines price effects related to witching days in the US stock market using both weekly and daily data for three major indices, namely the Dow Jones, S&P500 and Nasdaq, over the period 2000–2021. First it analyses whether or not anomalies in price behaviour arise from witching by using various parametric (Student’s t-test, and ANOVA) and non-parametric (Mann-Whitney) tests as well as an event study method and regressions with dummies; then it investigates whether or not any detected anomalies give rise to profit opportunities by applying a trading simulation approach. The results suggest the presence of the anomaly in daily returns on witching days which can be exploited by means of suitably designed trading strategies to earn abnormal profits, especially in the case of the Nasdaq index. Such evidence is inconsistent with the Efficient Market Hypothesis (EMH).https://www.tandfonline.com/doi/10.1080/23322039.2023.2182016Witching DaysAbnormal ReturnsStock MarketsAnomaliesTradingG12
spellingShingle Guglielmo Maria Caporale
Alex Plastun
Witching days and abnormal profits in the us stock market
Cogent Economics & Finance
Witching Days
Abnormal Returns
Stock Markets
Anomalies
Trading
G12
title Witching days and abnormal profits in the us stock market
title_full Witching days and abnormal profits in the us stock market
title_fullStr Witching days and abnormal profits in the us stock market
title_full_unstemmed Witching days and abnormal profits in the us stock market
title_short Witching days and abnormal profits in the us stock market
title_sort witching days and abnormal profits in the us stock market
topic Witching Days
Abnormal Returns
Stock Markets
Anomalies
Trading
G12
url https://www.tandfonline.com/doi/10.1080/23322039.2023.2182016
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