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Randomness of Stock Return in Nigerian Banking Sector

OBISESAN Oluwaseun G. and AJAYI Boboye L.
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OBISESAN Oluwaseun G.: Department of Banking and Finance, Faculty of Management Sciences, Ekiti State University, Ado Ekiti Nigeria
AJAYI Boboye L.: Department of Banking and Finance, Faculty of Management Sciences, Ekiti State University, Ado Ekiti Nigeria

Asian Journal of Economics and Empirical Research, 2017, vol. 4, issue 2, 99-105

Abstract: This study presents a test of Random Walk Hypothesis in the Nigerian Stock Market, with a view to determining if stock price changes conform to predetermined probability distribution. A sample of thirteen Deposit Money Banks which are listed on the Nigerian Stock Exchange between 2007 and 2014 were used in the analysis. Secondary daily price data for the period were sourced from the capital assets section of NSE Fact Book. The methods used were; Augmented Dickey-Fuller Test (ADF), Phillips-Perron Test (PP) and Kwiatkowski, Phillips, Schmidt and Shin Test (KPSS) unit root tests were used to test non-stationarity while Descriptive Statistics of Jaque-bera were used to check for normality. The ADF, PP and KPSS unit root test results imply that the changes in stock prices are stationary at level while Descriptive statistics results indicate that the changes in stock prices do not follow a normal distribution.

Keywords: Random walk; Deposit money bank; Daily stock return; ADF; KPSS. (search for similar items in EconPapers)
Date: 2017
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