Paul Hamill resigned from ING Barings last week, as managing director of global securities finance, less than two years after joining the firm to build its securities finance unit. Hamill is heading to Citadel Investment Group, a $5bn (€5.6bn) Chicago-based hedge fund, one of the largest surviving funds after cutbacks at Quantum and Tiger.

Another six members of the international prime brokerage team, under Martin Keller, also left ING Barings last week to join Dresdner Kleinwort Wasserstein.