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Investors’ Behavior under Changing Market Volatility


  • Daviou, Agustin
  • Paraschiv, Florentina



This paper analyzes the reaction of the S&P 500 returns to changes in implied volatility given by the VIX index, using a daily data sample from 1990 to 2012. We found that in normal regimes increases (declines) in the expected market volatility result in lower (higher) subsequent stock market returns. Thus, investors enter into selling positions upon a perception of increased risk for their equity investments, while they enter into long positions when they perceive an improved environment for those investments. However, for extreme regimes investors’ reaction to increasing risk is ambiguous. We found that VIX variation significantly influences investment strategies for holding periods up to one month. Additionally we propose an investment rule for short-term oriented investors.

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  • Daviou, Agustin & Paraschiv, Florentina, 2013. "Investors’ Behavior under Changing Market Volatility," Working Papers on Finance 1313, University of St. Gallen, School of Finance.
  • Handle: RePEc:usg:sfwpfi:2013:13

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    1. Nicola Gennaioli & Andrei Shleifer & Robert W. Vishny, 2013. "A Model of Shadow Banking," Journal of Finance, American Finance Association, vol. 68(4), pages 1331-1363, August.
    2. Acharya, Viral V. & Schnabl, Philipp & Suarez, Gustavo, 2013. "Securitization without risk transfer," Journal of Financial Economics, Elsevier, vol. 107(3), pages 515-536.
    3. Longstaff, Francis A., 2010. "The subprime credit crisis and contagion in financial markets," Journal of Financial Economics, Elsevier, vol. 97(3), pages 436-450, September.
    4. William Cheung & Scott Fung & Shih-Chuan Tsai, 2010. "Global capital market interdependence and spillover effect of credit risk: evidence from the 2007-2009 global financial crisis," Applied Financial Economics, Taylor & Francis Journals, vol. 20(1-2), pages 85-103.
    5. Daniel Covitz & Nellie Liang & Gustavo A. Suarez, 2013. "The Evolution of a Financial Crisis: Collapse of the Asset-Backed Commercial Paper Market," Journal of Finance, American Finance Association, vol. 68(3), pages 815-848, June.
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