Russell Investment Group has appointed United States-based managers Altrinsic Global Advisors and Alliance Capital Management to its global line-up.

They will both manage 10 per cent of Russell's International Shares Fund, increasing the weighting of global mandates in the fund to 30 per cent.

The announcement follows the recent appointment of global growth manager T Rowe Price to the Russell Global Opportunities Fund. Russell now has 20 global equity managers to its name.

Russell portfolio manager Kathy Cave said the movement towards global mandates went hand in hand with a freer stock selection environment. 

"Global equity managers have shifted their focus from country lines to sector lines, allowing them to pick the best ideas on a global basis. Global managers typically take more aggressive positions on stocks and sectors," Cave said.

Altrinsic is a bottom-up, fundamentals-focused manager, while Alliance has a global growth focus.

"The cross-border approach of these two high-confidence global managers offers a different and complementary source of potential excess returns to the regional strategies already employed in the fund," Cave said.

Other managers in the fund include Bernstein Investment Research and Management (17.5 per cent), MFS Institutional Advisors (17.5 per cent), Institutional Capital Corporation (11.6 per cent), Jacobs Levy Equity Management (12.6 per cent), Ark Asset Management (5.4 per cent), Turner Investment Partners (5.4 per cent) and the Russell Global Opportunities Fund (10 per cent).