Henderson has bought two investment companies from IOOF Holdings, acquiring 100% of Perennial Fixed Interest Partners and Perennial Growth Management with combined assets under management of $10.7bn. YieldReport understands that Perennial Fixed Interest is managing at least six Australian fixed interest mandates for investors such as AustralianSuper ($856m), CareSuper ($235m), Statewide Superannuation Trust ($198m) and EnergySuper ($188m). Cash mandates also fall under Perennial Fixed Interest and include a $314m mandate...