CME Group, the world’s largest exchange, has made a number of management changes to the Nex Group business it bought last year.

The £4bn acquisition gave CME control of the Electronic Broking Services foreign exchange trading venue and the BrokerTec business used by banks to buy and sell bonds. Nex, which was founded by City grandee Michael Spencer, also came with post-trade and risk management businesses such as TriOptima, Traiana, and Reset.