Superannuation funds' appetite for alternative investments, particularly private equity and infrastructure, is heating up, new research shows. : Superannuation funds' appetite for alternative investments, particularly private equity and infrastructure, is heating up, new research shows. Joint research by Preqin and the Australian Investment Council reveal super funds are on the hunt for co-investment opportunities across major private capital asset classes as the funds themselves grow in size and sophistication. Two years ago, super funds' looking for private equity co-investments stood at 65%. In 2020, this figure climbed to 74%. Their appetite for infrastructure co-investments jumped from about 58% to 71%.