Thirty clients of JP Morgan are losing access to the bank’s government securities settlements business, the unit that ensures that the quantities agreed to in trades are physically exchanged, in the bank’s latest re-evaluation of its most capital-intensive businesses.

The move means the bank will no longer settle treasury and agency bonds through its US broker-dealer arm for those 30 clients, which are banks and brokers that use JP Morgan as a third party to settle trades on their behalf. The firm said it hoped the majority of clients would have a smooth transition and that it would complete its exit by the end of 2017.