John Duffield

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John Duffield (born 1939) is a British financier. He founded Jupiter Fund Management, one of the largest fund managers operating in London.


Born the son of a physician and educated at Harrow School, Duffield went into investment management and, having become manager of his wife's estates, moved to Switzerland as a tax exile.[1]

He founded Jupiter Asset Management in 1985.[2] After selling Jupiter Asset Management to Commerzbank, he founded New Star Asset Management in 2001.[2]


He was married to Vivien Clore but was divorced from her in 1976; they had one son and one daughter.[1]


  1. ^ a b What is to become of John Duffield? Archived 2010-09-25 at the Wayback Machine. Evening Standard, 2 December 2008
  2. ^ a b John Duffield rebounds from fall of New Star,, 15 April 2009.

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