Purpose – The purpose of this paper is to focus on the performance of three alternative value-at-risk (VaR) models to provide suitable estimates for measuring and forecasting market risk. The data sample consists of five international developed and emerging stock market indices over the time...

Purpose – The purpose of this paper is to estimate volatility in African stock markets (ASMs), taking account of periodic level shifts in the mean level of volatility, where the regime shifts are determined endogenously. Design/methodology/approach – Volatility estimates are incorporated...

Purpose -The purpose of this paper is to empirically investigate whether call auctions which batch orders for simultaneous execution, may restrain stock market volatility. Design/methodology/approach -The authors use high-frequency data to investigate volatility changes following the suspension...

Ex ante tests of the efficiency of the London options market explain alternative hedging strategies to fund managers who seek to comprehend the opportunities in the options markets and profit by potential market inefficiencies. Over and under valued options were used to form hedge portfolios,...

Purpose – The purpose of this paper is to estimate volatility in African stock markets (ASMs), taking account of periodic level shifts in the mean level of volatility, where the regime shifts are determined endogenously. Design/methodology/approach – Volatility estimates are incorporated...

Purpose – The purpose of this paper is to focus on the performance of three alternative value‐at‐risk (VaR) models to provide suitable estimates for measuring and forecasting market risk. The data sample consists of five international developed and emerging stock market indices over the...

Purpose – The purpose of this paper is to empirically investigate whether call auctions which batch orders for simultaneous execution, may restrain stock market volatility. Design/methodology/approach – The authors use high-frequency data to investigate volatility changes following the...