Super fund members have a right to know what their funds are doing with their retirement savings.

But a survey of the disclosure of the 50 largest super funds by Market Forces, an affiliate of Friends of the Earth, found 83 per cent of assets under management are not disclosed.

Super fund members are entitled to know where their funds are investing. Credit:Paul Jones

Of the 50 funds, 19 provided zero transparency of their portfolio holdings.

Energy Super is the only fund to disclose its whole portfolio. Hostplus, Cbus and VicSuper disclose more than 50 per cent.