Journal of Applied Finance & Banking

An empirical analysis of trading volume and return volatility relationship on Istanbul stock exchange national -100 Index

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• Abstract

  It is a well-known fact that most of the asset returns tend to be skewed and heavytailed. Heavy tailed distributions such as the Student’s t distribution and Stable distribution are commonly used in finance to model asset returns that are heavy tailed. Additionally, Stable distribution allows not only for leptokurtosis but also skewness. Researchers that investigate the relationship between stock return volatility and trading volume have found a positive correlation between the volatility of returns and the volume traded. This paper focuses on this relationship by assuming the Student’s t and the Stable distributions for innovations. In this paper, GARCH and Threshold GARCH (TGARCH) models are applied on the Istanbul Stock Exchange National-100 Index with the purpose of analyzing the relationships between the volatility of stock returns and the trading volume.