Utilizing asymmetric shock on volatility and asymmetric beta for enhanced investment strategies in the Stock Exchange of Thailand

Abstract

This study investigates the impacts of asymmetric shock on volatility and beta within the Thai stock exchange. It finds that portfolios composed of stocks that demonstrate lower sensitivity to negative shocks and heightened responsiveness to market trends consistently outperform in various market conditions. The empirical analysis, spanning from 2018 to 2022, underscores the benefits of integrating asymmetry into investment strategies. A long-short strategy, in particular, is identified as highly effective, providing a means to capitalize on this asymmetry. The comparison of asymmetry-based portfolios with traditional ones and the SET index further illuminates the advantages of such strategies in enhancing risk-adjusted returns and effectively managing downside risk, thus offering investors a significant advantage in portfolio management.