Seven senior members from one of Advance Asset Management's underlying funds have walked out.
The defections from United States-based Boston Company Asset Management's investment team will create uncertainty for Advance Asset Management's Australian offerings.
The funds affected by the defections are the Advance International Shares Core Fund, Advance International Sharemarket Fund and International Shares Multi-Blend Fund.
Research group Morningstar has placed the Advance funds on hold as a result of the defections.
The portfolio managers, members of the international core and international small-cap equity investment teams, are joining rival US manager Munder Capital Management.
Boston chief investment officer David Cameron is to lead the two investment teams following the departures.
