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Do Hedge Funds Reduce Idiosyncratic Risk?

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  • Kang, Namho
  • Kondor, Péter
  • Sadka, Ronnie

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 decades.

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  • Kang, Namho & Kondor, Péter & Sadka, Ronnie, 2014. "Do Hedge Funds Reduce Idiosyncratic Risk?," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 49(4), pages 843-877, August.
    • Handle: RePEc:cup:jfinqa:v:49:y:2014:i:04:p:843-877_00
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    2. 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.
    3. 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.
    4. Joni Kokkonen & Matti Suominen, 2015. "Hedge Funds and Stock Market Efficiency," Management Science, INFORMS, vol. 61(12), pages 2890-2904, December.
    5. 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).
    6. Kolokolova, Olga & Lin, Ming-Tsung & Poon, Ser-Huang, 2020. "Too big to ignore? Hedge fund flows and bond yields," Journal of Banking & Finance, Elsevier, vol. 112(C).
    7. Mathias S. Kruttli & Andrew J. Patton & Tarun Ramadorai, 2015. "The Impact of Hedge Funds on Asset Markets," The Review of Asset Pricing Studies, Society for Financial Studies, vol. 5(2), pages 185-226.
    8. 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.
    9. 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.
    10. 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.
    11. 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).
    12. 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.
    13. 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.

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