Share The burgeoning sustainable superannuation sector continues to underperform its peers, with new data showing ethical funds have delivered lower returns to their members than non-sustainable funds over the past five years. The median sustainable balanced option delivered average annual returns of 8.3 per cent over the past five years, according to SuperRatings, which was less than the typical balanced option, which delivered returns of 8.7 per cent. Companies increasingly have to furnish their ESG credentials to attract investors. Gabriele Charotte The top-performing balanced option over the past five years was HESTA’s sustainable growth fund, which delivered annual returns of 11.8 per cent to its members, according to data from SuperRatings.