After an extensive review, boutique Hyperion Asset Management (Hyperion) will now manage $300 million of the ING OptiMix Australian equities portfolio. 

"Hyperion's unique strategy captures these attributes in a highly disciplined manner," ING Investment management multi strategies group chief investment officer Emmanuel Calligeris said.

"Hyperion as a manager has a high level of earnings forecasting skill, proven over a long period of time. Hyperion's acute and unwavering focus on business quality results in a portfolio with a high level of unique insights."

Hyperion joins Ausbil Dexia Limited, ING Investment Management, Orion Asset Management, Plato Investment Management and Tyndall as an Australian equities manager in the portfolio.

The OptiMix Australian shares portfolio has $3.1 billion in assets under management.

Hyperion managing director Manny Pohl said the Brisbane-based boutique had received strong inflows from some of its existing institutional investors.

"The interest we've been receiving is a strong endorsement of Hyperion's performance and proven ability to combine a high conviction strategy with low volatility and above benchmark returns," Pohl said.

In January OptiMix overhauled its international equities portfolio, appointing Real Index and Aberdeen to its $2.5 billion international equities manager line-up.

The two managers joined Amundi Asset Management (formerly Credit Agricole), Investec and MFS, while Capital International, Alliance Bernstein and Franklin Templeton were terminated from the portfolio.