Providing a true holistic service with optimally efficient portfolio management could be a challenge in Asia, where high-net-worth (HNW) clients tend to split their assets between a number of banks, but a growing level of sophistication is a valuable opportunity for private banks and wealth managers, according to panellists at the 'Asset allocation for ultra & high net worth' discussion at SRP's fourth Annual Asia-Pacific Alternatives & Wealth Management Conference in Singapore on May 25