The sovereign wealth fund of Norway, amongst the world's biggest investors, has said that it wants to participate more actively in the management of firms it has heavy investments in, such as Volvo and other firms.

The fund has under its management totalling US$728 billion and said it is aiming to become active participants of company activities such as election of board members.

According to the fund's CEO Yngve Slyngstad, "It means having an ownership in the order of 5 percent and that we find ourselves among the top five investors. Our ownership should be significant, in the order of $1 billion,"

This is the latest move by the fund whose main purpose is to invest Norwegian oil and gas revenues to generate profits for future generations. 

The fund also seeks to ensure its shareholders that equal treatment is done as well as be buffer zones between the actions of companies it owns as against one another. 

Currently, the CEO said that the Norwegian fund earned a 5.4% return on its portfolio for the first three months of 2013, which is a few points higher than the benchmark index.