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Sensitivity of the Euro OIS Term Structure to ECB Policy Rate Surprises

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Abstract

We analyze the sensitivity of the euro-area yield curve to revisions in market expectations of the ECB policy rate. Using changes in the maintenance-period forward OIS as a market-based measure of policy-rate surprises, we document that yield responses vary systematically across maturities. To interpret these patterns, we adopt a short-rate model with stochastic jumps occurring only at scheduled ECB meeting dates and derive closed-form expressions for the condi- tional sensitivity of yields to changes in the expected jump size. We compare the model-implied term-structure responses with realized yield changes on days of large revisions in expectations. The model reproduces the cross-sectional shape and magnitude of observed sensitivities, especially the pronounced peak at intermediate maturities, underscoring the importance of incorporating scheduled jump times when modeling interest-rate dynamics.

Suggested Citation

  • Stefano Herzel & Marco Nicolosi, 2026. "Sensitivity of the Euro OIS Term Structure to ECB Policy Rate Surprises," CEIS Research Paper 619, Tor Vergata University, CEIS, revised 12 Jan 2026.
    • Handle: RePEc:rtv:ceisrp:619
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    JEL classification:

    • E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates

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