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Uppvisar den svenska aktiemarknaden mean reversion? : En studie om Stockholmsbörsen, dess sektorer och olika marknadsförhållanden / Does the Swedish stock market exhibit mean reversion? : A study on the Stockholm Stock Exchange, its sectors and different market conditions

The purpose of this study is to examine whether the returns on the Stockholm Stock Exchange and its different sectors is mean reverting during the period 2003–2019. In addition to the examination of the entire period, the study also examines the periods before, during and after the global financial crisis. Daily, weekly and monthly data is used in combination with three different statistical methods in the form of ADF-tests, KPSS-tests and GPH-tests. The previous research conducted within the area yield different results but the tendency to find support for mean reversion increases during periods of economic uncertainty. The main standpoint used in previous literature and also this study is based on Famas (1970) publication about the efficient market hypothesis (EMH).  The results from the entire period are in line with the EMH where no robust indications for mean reversion is found neither for the specific sectors or the index itself. However, when the different periods are examined, in the period following the global financial crisis the healthcare and real estate sector show signs of mean reversion. In summary, the results show more support for mean reversion when the sectors are examined in relation to the entire Stockholm Stock Exchange. The conclusion based on these results is that an investor, in contrast to the EMH, can use the serial correlation in returns for these sectors as an indicator for when to buy and sell assets during periods as the one following the global financial crisis.

Identiferoai:union.ndltd.org:UPSALLA1/oai:DiVA.org:liu-177252
Date January 2021
CreatorsFors Rosén, Oskar, Liderfelt, Stefan
PublisherLinköpings universitet, Nationalekonomi, Linköpings universitet, Filosofiska fakulteten
Source SetsDiVA Archive at Upsalla University
LanguageSwedish
Detected LanguageEnglish
TypeStudent thesis, info:eu-repo/semantics/bachelorThesis, text
Formatapplication/pdf
Rightsinfo:eu-repo/semantics/openAccess

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