Triodos Bank covered bonds win Fitch 'AAA(EXP)' rating with stable outlook

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Triodos covered bonds AAA rating

Highlights

Fitch assigned Triodos Bank N.V.'s residential mortgage covered bonds an expected 'AAA(EXP)' rating with Stable Outlook, based on strong structural protections and asset quality.
Fitch's asset percentage of 76.0% provides substantial protection versus the 84.0% break-even requirement for a 'AAA' rating, reflecting low risk of undercollateralisation.
The cover pool comprises properties with at least an 'A' energy performance certificate, prompting Fitch to apply a positive 5% adjustment to property value assumptions.

Rating structure and programme protections

As reported by Fitch Ratings, Triodos Bank N.V.'s residential mortgage covered bonds issued under its soft-bullet programme have been assigned an expected rating of 'AAA(EXP)' with a Stable Outlook.

The bonds are issued under a legislative framework, constitute senior unsecured obligations of Triodos Bank and are guaranteed by Triodos Covered Bond Company B.V., the special purpose vehicle that holds the cover assets for security purposes.

Fitch says the expected rating is based on Triodos Bank's Long-Term Issuer Default Rating of 'BBB', alongside a two-notch resolution uplift, a six-notch payment continuity uplift and a two-notch recovery uplift. The agency also says its relied-upon asset percentage of 76.0% provides more protection than the 84.0% break-even asset percentage required for a 'AAA' rating.

The Stable Outlook reflects a two-notch buffer against a downgrade of the bank's IDR and the Stable Outlook on Triodos Bank itself. Fitch adds that Dutch collateralised covered bonds are exempt from bail-in and views the programme's risk of undercollateralisation at the point of resolution as sufficiently low.

Mortgage pool quality and market implications

The six-notch payment continuity uplift is linked to the 12-month maturity extension built into the soft-bullet structure, as well as interest-protection measures through a reserve fund sized to cover interest payments, or swap payments where applicable, and senior expenses on a rolling three-month basis.

Fitch also grants a two-notch recovery uplift, saying it identifies no limitation to recovery expectations. Both the assets and the covered bonds are denominated in euros.

The agency highlights the environmental profile of the cover pool, noting that all properties in the portfolio carry an energy performance certificate score of at least A. That leads Fitch to apply a positive 5% adjustment to assumed index property values when determining recovery rate assumptions, reflecting stronger price dynamics for highly rated energy-efficient properties.

Fitch says the 84.0% 'AAA' break-even asset percentage, equivalent to overcollateralisation of 19.0%, is derived after applying a 25% haircut to the model overcollateralisation output. It adds that the largest component of mismatch loss, 17.3%, is driven mainly by the weighted average life gap between the assets at 17.5 years and the inaugural issuance at three years, while the 1.8% credit loss component reflects portfolio loss floors and the presence of Nationale Hypotheek Garantie-backed loans representing 14.9% of the cover pool.

Previously, we outlined the main factors behind sovereign ratings pressure as geopolitical tensions and elevated fiscal spending keep funding costs high.

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