Citigroup's corporate broking division intends to increase its focus on UK small- and mid-cap mandates and has hired Mathew Wooton, deputy head of the London Stock Exchange's AIM junior segment, as part of the effort.

Wooton, who was chairman of AIM's management board and was responsible for the day-to-day running and development of the market, will join Citigroup's broking operation as a vice-president.