Vontobel will become the largest Swiss-domiciled wealth manager for US clients seeking an account in Switzerland for diversification purposes The transaction is part of Vontobel’s long-term growth strategy in the US UBS USA will continue to refer clients with a US connection seeking regionally diversified strategies in a Swiss based environment exclusively to Vontobel SFAVontobel (SWX: VONN), the global investment firm, today announced the closing of the acquisition of UBS Swiss Financial Advisers AG (SFA),...