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Portfolio rebalancing versus buy-and-hold: A simulation based study with special consideration of portfolio concentration

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  • Frieder Meyer-Bullerdiek

Abstract

The aim of this study is not only to explore if portfolio rebalancing can lead to a better performance compared to a buy-and-hold (B&H) strategy but to find out if there is a correlation between the weight-based concentration of the B&H portfolio and the success of a rebalancing strategy. For these reasons, it is firstly discussed how rebalancing affects portfolio diversification, risk-adjusted return and the utility value for a certain investor. Secondly, it is discussed on what the portfolio weight of a special stock is depending on whereas the cases of an initially equally and unequally weighted portfolio are distinguished. The latter one has a larger weight concentration which is determined by the normalized Herfindahl index and the coefficient of variation. These issues are explored theoretically and empirically. In the empirical analysis the Monte Carlo simulation is used which is based upon 1,000 simulations with 520 generated returns for each of the 15 assumed stocks in the initially equally weighted portfolio. The results show that the diversification ratio, the return to risk ratio, and the utility value of the rebalanced portfolio turn out to be significantly greater than those of the B&H portfolio. The rebalanced portfolio has a slightly (not significant) positive rebalancing return. Finally, a strong negative correlation between the rebalancing return and the weight concentration of the B&H portfolio is found. JEL classification numbers: G11Keywords: portfolio rebalancing, rebalancing return, buy-and-hold, diversification ratio, return to risk ratio, utility value, portfolio concentration, autocorrelation

Suggested Citation

  • Frieder Meyer-Bullerdiek, 2018. "Portfolio rebalancing versus buy-and-hold: A simulation based study with special consideration of portfolio concentration," Journal of Applied Finance & Banking, SCIENPRESS Ltd, vol. 8(5), pages 1-4.
    • Handle: RePEc:spt:apfiba:v:8:y:2018:i:5:f:8_5_4
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    References listed on IDEAS

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    1. Frieder Meyer-Bullerdiek, 2017. "Rebalancing and Diversification Return – Evidence from the German Stock Market," Journal of Finance and Investment Analysis, SCIENPRESS Ltd, vol. 6(2), pages 1-1.
    2. Hubert Dichtl & Wolfgang Drobetz & Martin Wambach, 2014. "Where is the value added of rebalancing? A systematic comparison of alternative rebalancing strategies," Financial Markets and Portfolio Management, Springer;Swiss Society for Financial Market Research, vol. 28(3), pages 209-231, August.
    3. Samuel Kyle Jones & Joe Bert Stine, 2010. "Expected utility and the non-normal returns of common portfolio rebalancing strategies," Journal of Asset Management, Palgrave Macmillan, vol. 10(6), pages 406-419, February.
    4. Chen, XiaoHua & Lai, Yun-Ju, 2015. "On the concentration of mutual fund portfolio holdings: Evidence from Taiwan," Research in International Business and Finance, Elsevier, vol. 33(C), pages 268-286.
    5. Simone Brands & Stephen J. Brown & David R. Gallagher, 2005. "Portfolio Concentration and Investment Manager Performance," International Review of Finance, International Review of Finance Ltd., vol. 5(3‐4), pages 149-174, September.
    6. Winfried G Hallerbach, 2014. "Disentangling rebalancing return," Journal of Asset Management, Palgrave Macmillan, vol. 15(5), pages 301-316, October.
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