UK - F&C Asset Management is due to complete its acquisition of Thames River Capital by 1 September following consent from the Financial Services Authority.
The acquisition - first announced on 28 April - was later approved by F&C's shareholders at a general meeting on 18 June.
The asset manager said it expects the transaction to be earnings enhancing on an underlying basis in its first full financial year after completion.
It said Thames River will bring strong expertise in managing specialist investments and absolute return strategies, complementing F&C's existing product range.
F&C chief executive Alain Grisay said: "Since we first announced the transaction we have undertaken detailed integration planning so that as soon as we complete we will move immediately into the implementation phase and seize the significant cross-selling opportunities we believe the combination brings."
Thames River has also developed a multi-boutique asset management model since it started in 1998, where its investment teams operate autonomously while sharing in the profitability of the products they manage.
F&C said this model will remain, and Thames River will continue to operate from its Berkeley Square headquarters.
Year to date, Thames River has generated £1.1bn of gross new business. Once the acquisition is finalized, Charlie Porter - chief executive of Thames River Capital - will join the F&C executive committee, to lead the development of the combined group's retail and wholesale funds business.
Thames River also brings proven distribution in the wealth management sector which supports F&C's institutional business, with significant cross-selling opportunities across the combined group.
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