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Corporate hedging and the variance of stock returns

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  • Biguri, Kizkitza
  • Brownlees, Christian
  • Ippolito, Filippo

Abstract

By means of a difference-in-differences approach on the volatility of stock returns (σ-DID), we investigate the effect that hedging has on corporate risk. Examining the relation between hedging and the idiosyncratic variance of stock returns, we show that when new commodity derivatives are introduced in the Chicago Mercantile Exchange (CME), firms with exposure to the commodities experience up to a 40% drop in the idiosyncratic variance of stock returns. The effect is persistent over time and it is associated with real effects: firms that hedge more also experience an increase in profit margins, investment, access to credit lines, and a drop in cash holdings. Our results establish a direct link between corporate risk management policies and stock return behavior.

Suggested Citation

  • Biguri, Kizkitza & Brownlees, Christian & Ippolito, Filippo, 2022. "Corporate hedging and the variance of stock returns," Journal of Corporate Finance, Elsevier, vol. 72(C).
    • Handle: RePEc:eee:corfin:v:72:y:2022:i:c:s0929119921002698
    DOI: 10.1016/j.jcorpfin.2021.102147
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    Cited by:

    1. Wang, Ningli & Zhou, Qichong, 2022. "Does commodity hedging with derivatives reduce stock price volatility?," Finance Research Letters, Elsevier, vol. 50(C).
    2. Chaudhry, Neeru & Gupta, Aastha, 2023. "Do derivatives benefit shareholders? Evidence from India," Finance Research Letters, Elsevier, vol. 55(PB).

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    More about this item

    Keywords

    Hedging; Commodity derivatives; Risk management; Variance of stock returns; Difference-in-differences;
    All these keywords.

    JEL classification:

    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G13 - Financial Economics - - General Financial Markets - - - Contingent Pricing; Futures Pricing
    • 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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