Spinto dal tuo post ho fatto una veloce incursione sul prospetto della 059, dove il Regulatory Event viene così definito:
"Regulatory Event means any event (including any amendment to, clarification of, or change in laws or regulations applicable to the Issuer, or a change in the official interpretation thereof or policies with respect thereto, or any official administrative pronouncement or judicial decision interpreting or applying such laws or regulations, including any pronouncement or publication from the European Commission or other relevant authority), occurring or becoming effective after the date of issue of the Notes, which has, or will have, the effect that the Issuer is no longer, or will no longer be, capable of including the Notes in its Tier 1 Capital, except where such non-qualification is due to limits in the Issuer's capacity for innovative Tier 1 Capital (other than changes, including changes to the grandfathering limits, made by the Lead Regulator to prescribed limits for different forms of Tier 1 Capital)"
Un po' contorto, ma non si parla di 10%.