"We have at least three good internal candidates, and if somebody leads our core business as co-chief, it's pretty clear that this person should have the potential," Ermotti told the Neue Zuercher Zeitung, adding a change was not imminent. "It's just going to depend on the needs of the bank at the time of the change."

Ermotti, who has been CEO since 2011, made the comments after the world's biggest wealth manager appointed former Credit Suisse manager Iqbal Khan to co-lead its flagship wealth management business alongside U.S. counterpart Tom Naratil, as part of a broader shake-up of its executive board.

(Reporting by John Miller; Editing by Michael Shields)

Stocks treated in this article : Credit Suisse Group AG, UBS Group