Volume 1 • Issue 2 • PP: 23-28 • 2025
Integrating Volatility Shocks Into Financial Management Methodologies: Evidence From US Equity
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© 2025 The Author(s). Published by ASPG. This article is licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).
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This study examines the relationship between implied market volatility and US equity market excess returns over the period August 2020 to December 2024. Using monthly data from the Fama–French Data Library and the CBOE Volatility Index (VIX), the analysis distinguishes between the effects of absolute VIX levels and monthly changes in VIX (ΔVIX). Results indicate that while high volatility levels show a weak, statistically insignificant relationship with returns, volatility shocks (ΔVIX) exert a strong and significant negative effect, with a one-point increase in ΔVIX linked to a 0.81 percentage point drop in monthly excess returns. The findings support integrating ΔVIX into investment appraisal, risk management, and tactical asset allocation frameworks to improve resilience during periods of market stress.
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References
Bali, T. G., & Zhou, H. (2016). Risk, uncertainty, and expected returns. Journal of Financial and Quantitative Analysis, 51(3), 707–735.
Bekaert, G., & Wu, G. (2000). Asymmetric volatility and risk in equity markets. The Review of Financial Studies, 13(1), 1–42.
Bollerslev, T., Tauchen, G., & Zhou, H. (2009). Expected stock returns and variance risk premia. The Review of Financial Studies, 22(11), 4463–4492.
Campbell, J. Y., & Hentschel, L. (1992). No news is good news: An asymmetric model of changing volatility in stock returns. Journal of Financial Economics, 31(3), 281–318.
Fama, E. F., & French, K. R. (1993). Common risk factors in the returns on stocks and bonds. Journal of Financial Economics, 33(1), 3–56.
Fleming, J., Ostdiek, B., & Whaley, R. E. (1995). Predicting stock market volatility: A new measure. Journal of Futures Markets, 15(3), 265–302.
French, K. R., Schwert, G. W., & Stambaugh, R. F. (1987). Expected stock returns and volatility. Journal of Financial Economics, 19(1), 3–29.
Giot, P. (2005). Relationships between implied volatility indexes and stock index returns. Journal of Portfolio Management, 31(3), 92–100.
Ross, S. A. (1976). The arbitrage theory of capital asset pricing. Journal of Economic Theory, 13(3), 341–360.
Sharpe, W. F. (1964). Capital asset prices: A theory of market equilibrium under conditions of risk. The Journal of Finance, 19(3), 425–442.
Whaley, R. E. (2000). The investor fear gauge. Journal of Portfolio Management, 26(3), 12–17.
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