Witan Investment Trust has appointed five new money managers to help invest its £1.2bn (€1.75bn) worth of assets in a revoluionary move which ends Henderson Global Investors' near 100-year monopoly running the trust's portfolio.

Henderson, owned by HHG, the UK spin-out from Australian group, AMP, is left running only Witan's mainstream and smaller companies equity portfolios in the UK and its North American portfolio.