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Good Diversification is Never Wasted: How to Tilt Factor Portfolios with Sectors


  • Ariane Szafarz
  • Marie Briere


Using large-cap exchange-traded funds (ETFs), this paper provides guidance onenhancing the performance of long-only factor portfolios through sector-based blending. The blending method builds ETF portfolios that optimize the factor exposure of sectors. We use the original factors of Fama and French asbenchmarks. The results show that blended portfolios combine the diversification benefits of sector investing with the risk premia of factor investing, and so constitute a promising extension of pure factor ETFs.

Suggested Citation

  • Ariane Szafarz & Marie Briere, 2019. "Good Diversification is Never Wasted: How to Tilt Factor Portfolios with Sectors," Working Papers CEB 19-014, ULB -- Universite Libre de Bruxelles.
  • Handle: RePEc:sol:wpaper:2013/287753

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    References listed on IDEAS

    1. Fama, Eugene F & French, Kenneth R, 1992. "The Cross-Section of Expected Stock Returns," Journal of Finance, American Finance Association, vol. 47(2), pages 427-465, June.
    2. Esther Ruiz & Lorenzo Pascual, 2002. "Bootstrapping Financial Time Series," Journal of Economic Surveys, Wiley Blackwell, vol. 16(3), pages 271-300, July.
    3. Fama, Eugene F. & French, Kenneth R., 2015. "A five-factor asset pricing model," Journal of Financial Economics, Elsevier, vol. 116(1), pages 1-22.
    4. De Moor, Lieven & Sercu, Piet, 2011. "Country versus sector factors in equity returns: The roles of non-unit exposures," Journal of Empirical Finance, Elsevier, vol. 18(1), pages 64-77, January.
    5. Marie Briere & Ariane Szafarz, 2018. "Factors and Sectors in Asset Allocation: Stronger Together?," Working Papers CEB 18-016, ULB -- Universite Libre de Bruxelles.
    6. Clifford S. Asness & Tobias J. Moskowitz & Lasse Heje Pedersen, 2013. "Value and Momentum Everywhere," Journal of Finance, American Finance Association, vol. 68(3), pages 929-985, June.
    7. Ang, Andrew, 2014. "Asset Management: A Systematic Approach to Factor Investing," OUP Catalogue, Oxford University Press, number 9780199959327.
    8. Sayili, Koray & Yilmaz, Gokhan & Dyer, Douglas & Küllü, A. Melih, 2017. "Style investing and firm innovation," Journal of Financial Stability, Elsevier, vol. 32(C), pages 17-29.
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    Cited by:

    1. Matteo Foglia & Maria Cristina Recchioni & Gloria Polinesi, 2021. "Smart Beta Allocation and Macroeconomic Variables: The Impact of COVID-19," Risks, MDPI, vol. 9(2), pages 1-25, February.
    2. Wolfgang Bessler & Georgi Taushanov & Dominik Wolff, 2021. "Factor investing and asset allocation strategies: a comparison of factor versus sector optimization," Journal of Asset Management, Palgrave Macmillan, vol. 22(6), pages 488-506, October.
    3. Rehman, Mobeen Ur & Vo, Xuan Vinh & McIver, Ron & Kang, Sang Hoon, 2022. "Sensitivity of US sectoral returns to energy commodities under different investment horizons and market conditions," Energy Economics, Elsevier, vol. 108(C).
    4. Fernandes, Leonardo H.S. & de Araujo, Fernando H.A. & Tabak, Benjamin M., 2021. "Insights from the (in)efficiency of Chinese sectoral indices during COVID-19," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 578(C).

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    More about this item


    Portfolio management; asset allocation; factor; industry; sector; crisis;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • G01 - Financial Economics - - General - - - Financial Crises

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