UBS booked a litigation charge of nearly $2bn in the third quarter, as it held talks with regulators investigating whether it tried to manipulate the foreign exchange market.
Switzerland's largest bank made a SFr1.84bn ($1.9bn) provision for possible regulatory settlements and litigation charges as it warned these were likely to remain "at elevated levels" for the rest of the year.
UBS said it was taking the charge to deal with "litigation, regulatory and similar matters," adding:
At this point in time, we believe that the industry continues to operate in an environment where charges associated with litigation, regulatory and similar matters will remain elevated for the foreseeable future.