Multi-managers have seen a strong growth in assets under management from UK pension funds in the past 18 months.

Frank Russell Company increased its UK assets by 97%, to £6.3bn (&#836410.4bn) in the 12 months to September 30, while Northern Trust Global Investments saw UK funds grow by 64% to £1bn in the 12 months to June 30, according to a survey by Pensions Management.