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How Do Markets React to Tighter Bank Capital Requirements?

Author

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  • Cyril Couaillier
  • Dorian Henricot

Abstract

We use hikes in the countercyclical capital buffer [CCyB] to measure how tighter bank capital requirements affect their solvency and value, according to market participants. Two features of the CCyB in Europe allow for a unique identification strategy of the effect of such requirements. First, national authorities make quarterly announcements of CCyB rates. Second, these hikes affect all European banks proportionally to their exposure to the country of activation. We show that CCyB hikes translate in lower CDS spreads for affected banks, indicating that markets perceive higher solvency. On the other hand, bank valuations do not react. Markets therefore consider that higher capital requirements translate into more stable banks at no material cost for shareholders. We claim that these effects relate to the capital constraint itself, as opposed to the potential signal conveyed on the state of the financial cycle.

Suggested Citation

  • Cyril Couaillier & Dorian Henricot, 2020. "How Do Markets React to Tighter Bank Capital Requirements?," Working papers 772, Banque de France.
    • Handle: RePEc:bfr:banfra:772
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    Cited by:

    1. John Caparusso & Leonardo Ulf Lewrick & Nikola Tarashev, 2023. "Profitability, valuation and resilience of global banks - a tight link," BIS Working Papers 1144, Bank for International Settlements.
    2. Aakriti Mathur & Matthew Naylor & Aniruddha Rajan, 2023. "Useful, usable, and used? Buffer usability during the Covid-19 crisis," Bank of England Staff Working Paper series 1011, Bank of England.
    3. Bobiceanu, Andreea Maura & Nistor, Simona & Ongena, Steven, 2026. "Banks’ stock market reaction to prudential policy announcements: The role of central bank independence and financial stability sentiment," Journal of Financial Stability, Elsevier, vol. 83(C).
    4. Krettek, Jonas, 2025. "Market reactions to the Basel reforms: Implications for shareholders, creditors, and taxpayers," The Quarterly Review of Economics and Finance, Elsevier, vol. 101(C).
    5. Cuzzola, Angelo & Barbieri, Claudio & Hałaj, Grzegorz, 2025. "Gaming the test? Window-dressing and portfolio similarity around the EU-wide stress tests," Working Paper Series 3094, European Central Bank.

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    Keywords

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    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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