"However, these measures are just a stopgap, and banks must make sure that they are prepared for what happens next," she said in Dublin. "There is no time to relax; there is just a little more time to prepare."

She added that as clearing was a highly concentrated business, supervisors should examine whether it was desirable in the future to rely on a just a single clearing entity.

(Reporting by Balazs Koranyi; Editing by Francesco Canepa)