The hedge funds investor founded by prominent manager Arpad Busson has become the latest of its peers to insist that portfolios it invests in must be valued by independent agents, rather than relying on managers to do it themselves.

Investors have increasingly pushed for independent fund valuation by administrators in part due to pressure from their own clients to do so, and as part of beefing up risk controls after frauds and portfolio mispricings including that perpetrated by conman Bernard Madoff.