Fidelity has hired Peter Kaye from Dalton Strategic Partnership to run its $1.6bn American fund, as current manager Aris Vatis leaves the group.
Kaye (pictured) will join Fidelity in the first quarter of 2013, as part of a doubling of the group's US portfolio manager capability from two to four.
He will assume management of the Fidelity Investment Funds American fund from Vatis, who is to leave Fidelity this Friday.
Adrian Brass, manager of the Fidelity America fund, will run the FIF American fund until Kaye arrives.
But Brass will hand over FIF American Special Situations to Angel Agudo, allowing him to launch a new US equity fund in the first half of 2013.
Vatis' American Growth fund will be taken over by Aditya Khowala. Agudo and Khowala have been at Fidelity for seven and eight years respectively, initially as analysts and more recently as portfolio managers.
At Dalton, Kaye ran the £98m Melchior North American Opportunities and Melchior Selected Trust North American Opportunities fund.
"The combination of Peter and Adrian Brass, along with the transfer into the team of two of our most promising new portfolio managers creates many new opportunities for us to expand the breadth and depth of our fund range," said Fidelity global CIO for equities Dominic Rossi.
"These appointments, combined with the significant concurrent expansion of our in-house research capabilities, create one of the strongest and best-resourced US equity teams outside North America."
In November Investment Week revealed Fidelity is looking to build up its US-focused in-house capability as it severs ties with Boston-based research arm.
Rossi is set to recruit a total of 17 investment professionals over the next year as FWI becomes an entirely separate entity from Fidelity Management and Research (FMR).
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