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Pricing Poseidon: Extreme Weather Uncertainty and Firm Return Dynamics

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  • MATHIAS S. KRUTTLI
  • BRIGITTE ROTH TRAN
  • SUMUDU W. WATUGALA

Abstract

We empirically analyze firm‐level uncertainty generated from extreme weather events, guided by a theoretical framework. Stock options of firms with establishments in a hurricane's (forecast) landfall region exhibit large implied volatility increases, reflecting significant uncertainty (before) after impact. Volatility risk premium dynamics reveal that investors underestimate such uncertainty. This underreaction diminishes for hurricanes after Sandy, a salient event that struck the U.S. financial center. Despite constituting idiosyncratic shocks, hurricanes affect hit firms' expected stock returns. Textual analysis of calls between firm management, analysts, and investors reveals that discussions about hurricane impacts remain elevated throughout the long‐lasting high‐uncertainty period after landfall.

Suggested Citation

  • Mathias S. Kruttli & Brigitte Roth Tran & Sumudu W. Watugala, 2025. "Pricing Poseidon: Extreme Weather Uncertainty and Firm Return Dynamics," Journal of Finance, American Finance Association, vol. 80(2), pages 783-832, April.
    • Handle: RePEc:bla:jfinan:v:80:y:2025:i:2:p:783-832
    DOI: 10.1111/jofi.13416
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