New Zealand Super, the NZ$17.6 billion ($A13.4 billion) sovereign pension fund, has appointed a new quantitative manager for in global equities.

NZ Super, which invests more than 60 per cent of its total assets in international equities, has appointed the Deutsche Asset Management spin-off firm QS Investors to the new mandate.

QS Investors, now owned by management, is still represented in Australasia by Deutsche. It is considered to be one of the largest funds managers in the world which is majority owned by women, with about 40 investment professionals based in New York.

The firm was formed last year by the former Deutsche quant team, led by chief executive Janet Campagna, which has mostly worked together for about 10 years. They have a range of asset allocation and active equity strategies on offer.

Deutsche Asset Management in Australia is thought to have added more than A$1 billion to its locally gathered global equities strategy assets in the past year or so. With the NZ Super mandate, the firm has raised about $600 million in new money in the past quarter.

Note: An earlier version of this report incorrectly stated that the NZ Super mandate was worth NZ$600 million. The mandate sum is unspecified.