Norinchukin trims slotting approach reliance, expands A-IRB scope

- By Lorenzo Migliorato
- 06 Jun 2025

The Norinchukin Bank shifted a large portion of its credit risk-weighted assets (RWAs) from the supervisory slotting approach to the more granular advanced internal ratings-based (A-IRB) approach in the first quarter, bringing its modelling profile closer to that of other Japanese banks.

RWAs under supervisory slotting dropped 87.9% to ¥264.8 billion ($1.8 billion) in the three months to end-March

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