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Do Hedge Funds Reduce Idiosyncratic Risk?

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  • Namho Kang
  • Peter Kondor
  • Ronnie Sadka

Abstract

This paper studies the effect of hedge-fund trading on idiosyncratic risk. We hypothesize that while hedge-fund activity would often reduce idiosyncratic risk, high initial levels of idiosyncratic risk might be further amplified due to fund loss limits. Panel-regression analyses provide supporting evidence for this hypothesis. The results are robust to sample selection and are further corroborated by a natural experiment using the Lehman bankruptcy as an exogenous adverse shock to hedge-fund trading. Hedge-fund capital also explains the increased idiosyncratic volatility of high-idiosyncratic-volatility stocks as well as the decreased idiosyncratic volatility of low-idiosyncratic-volatility stocks over the past few decade.

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  • Namho Kang & Peter Kondor & Ronnie Sadka, 2012. "Do Hedge Funds Reduce Idiosyncratic Risk?," CEU Working Papers 2012_15, Department of Economics, Central European University, revised 04 Oct 2012.
    • Handle: RePEc:ceu:econwp:2012_15
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    Cited by:

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    3. Jing Zhang & Wei Zhang & Youwei Li & Xu Feng, 2022. "The role of hedge funds in the asset pricing: evidence from China," The European Journal of Finance, Taylor & Francis Journals, vol. 28(2), pages 219-243, January.
    4. Lu Li & Yang Li & Xueding Wang & Tusheng Xiao, 2020. "Structural holes and hedge fund return comovement: evidence from network‐connected stock hedge funds in China," Accounting and Finance, Accounting and Finance Association of Australia and New Zealand, vol. 60(3), pages 2811-2841, September.
    5. Agarwal, Vikas & Aragon, George O. & Shi, Zhen, 2015. "Funding liquidity risk of funds of hedge funds: Evidence from their holdings," CFR Working Papers 15-12, University of Cologne, Centre for Financial Research (CFR).
    6. Farid Radmehr & Tolga Cenesizoglu, 2019. "The Causal Effect of Institutional Ownership on Firm Level Risk Characteristics," Cahiers de recherche / Working Papers 2, Institut sur la retraite et l'épargne / Retirement and Savings Institute.
    7. Mihov, Atanas & Naranjo, Andy, 2017. "Customer-base concentration and the transmission of idiosyncratic volatility along the vertical chain," Journal of Empirical Finance, Elsevier, vol. 40(C), pages 73-100.
    8. Aragon, George O. & Kim, Min S., 2023. "Fire sale risk and expected stock returns," Journal of Financial Economics, Elsevier, vol. 149(3), pages 578-609.
    9. Petri Jylhä & Kalle Rinne & Matti Suominen, 2014. "Do Hedge Funds Supply or Demand Liquidity?," Review of Finance, European Finance Association, vol. 18(4), pages 1259-1298.
    10. Mustafa O. Caglayan & Umut Celiker & Gokhan Sonaer, 2022. "Disagreement between hedge funds and other institutional investors and the cross‐section of expected stock returns," The Financial Review, Eastern Finance Association, vol. 57(3), pages 663-689, August.
    11. Chung, Kee H. & Wang, Junbo & Wu, Chunchi, 2019. "Volatility and the cross-section of corporate bond returns," Journal of Financial Economics, Elsevier, vol. 133(2), pages 397-417.
    12. Joni Kokkonen & Matti Suominen, 2015. "Hedge Funds and Stock Market Efficiency," Management Science, INFORMS, vol. 61(12), pages 2890-2904, December.
    13. De Rossi, Giuliano & Steliaros, Michael, 2022. "The Shift from Active to Passive and its Effect on Intraday Stock Dynamics," Journal of Banking & Finance, Elsevier, vol. 143(C).

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