Banco Comercial Portugues covered bonds affirmed at AAA after Fitch review

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BCP covered bonds AAA rating

Highlights

Fitch affirms Banco Comercial Portugues's Portuguese soft-bullet mortgage covered bonds at 'AAA'/Stable after programme review, reflecting BCP's 'BBB+'/Positive/F2 issuer rating and uplift factors.
Fitch raises the 'AAA' break-even over-collateralization level to 13.5% from 12% following a EUR2.4 billion asset transfer and increased floating-rate bond notional to EUR4 billion, widening maturity mismatches.
Fitch warns the rating is vulnerable if BCP's issuer default rating falls by two notches or over-collateralization drops below 13.5%, with a three-notch downgrade possible if the legal minimum 5% is reached.

Rating review reflects collateral and maturity changes

As reported by Fitch Ratings, Banco Comercial Portugues, S.A.'s Portuguese soft-bullet mortgage covered bonds remain rated at 'AAA' with a Stable Outlook after the agency's latest programme review. The action applies to the bank's obrigacoes cobertas and is based on BCP's 'BBB+'/Positive/F2 issuer profile, together with rating uplifts tied to resolution, payment continuity and recovery expectations.

Fitch says it has revised the 'AAA' break-even over-collateralization level to 13.5% from 12%. The change reflects a EUR2.4 billion asset transfer and the increase in the notional amount of the floating-rate series due in October 2029 to EUR4 billion from EUR2 billion in July 2026, which has widened maturity mismatches between the cover pool and the outstanding bonds.

The agency says the higher mismatch pushes asset and liability management loss to 7.3% from 6.2%, while credit loss is revised to 6.2% from 6.0%. Fitch also says the 14.0% over-collateralization it relies on in its analysis as of September 2026 remains above the 13.5% break-even level, giving the programme a protection buffer under its current assumptions.

Downgrade triggers and sector implications

The covered bonds remain at the highest point on Fitch's rating scale, meaning there is no scope for an upgrade. Fitch says the current rating incorporates a two-notch resolution uplift, a four-notch payment continuity uplift and a two-notch recovery uplift, while BCP's November 2025 issuer rating upgrade to 'BBB+' from 'BBB' adds a one-notch cushion against an issuer downgrade.

For investors in Portuguese covered bonds, the main risk markers now centre on the bank's issuer rating and the level of over-collateralization maintained in the programme. Fitch says the rating would become vulnerable if BCP's issuer default rating were cut by two notches, or if the over-collateralization used in its analysis dropped below the break-even level needed to support a 'AAA' rating.

If relied-upon over-collateralization falls to the 5% legal minimum, Fitch says the bonds would instead be rated on the basis of resolution and recovery uplift and could be downgraded by three notches. The agency also says the break-even over-collateralization needed to preserve the rating can change over time as the profile of cover assets and outstanding bonds shifts, even without new issuance.

Our earlier coverage of Fitch’s rating on Hainan Rubber’s proposed subordinated perpetual sustainable securities explained why the notes were positioned below the issuer rating, highlighting their subordinated ranking and the option to defer coupons. We also outlined Fitch’s view on group support, leverage and liquidity, and the factors that could influence the credit profile as the company refinances offshore debt.

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