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Volatility-Adjusted Performance An Alternative Approach to Interpret Long-Run Returns

Author

Listed:
  • Jakobsen, Jan

    (Department of Finance, Copenhagen Business School)

  • Voetmann, Torben

    (Department of Finance, Copenhagen Business School)

Abstract

This paper investigates long-run returns by utilizing log-normal distribution properties of cross-sectional buy-and-hold returns. We decompose expected cross-sectional buy-and- hold returns into transformed mean components and volatility components. This decomposition shows that the volatility component contributes positively to the right-skewed buy-and-hold returns due to Jensen's inequality. Given the log-normal distri-bution properties are fulfilled, the method can be applied to any type of long-horizon event study of security performance. We apply the method to IPO stocks and SEO stocks listed on the Copenhagen Stock Exchange. Using traditional standard tech-niques, we find that IPO stocks and SEO stocks under perform relative to the market after five years by 27.3 percent and 21.4 percent, respectively. However, the volatility-adjusted performance measure shows that the IPO stocks and SEO stocks under per-form relative to the market after five years by 43.7 percent and 38.1 percent, respec-tively.

Suggested Citation

  • Jakobsen, Jan & Voetmann, Torben, 1999. "Volatility-Adjusted Performance An Alternative Approach to Interpret Long-Run Returns," Working Papers 2000-3, Copenhagen Business School, Department of Finance.
  • Handle: RePEc:hhs:cbsfin:2000_003
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    File URL: http://openarchive.cbs.dk/cbsweb/handle/10398/7177
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    More about this item

    Keywords

    Wealth relatives; buy-and-hold returns; equity offerings;

    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill

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