KiwiSaver funds with higher allocations to cash and fixed interest performed better than those with more money invested in shares and property in the three months to June 30, figures from Morningstar show.
The company's analysis also shows the first type of fund is on average the better performer over four years.
Chris Douglas, Morningstar's Australasia co-head of fund research, said global economic and political concerns had reasserted themselves strongly in the second quarter of this year, causing world sharemarkets to fall.
"The mixed returns from sharemarkets resulted in KiwiSaver options with higher exposures to income assets [cash and fixed interest] outperforming those with more invested in growth assets [shares and property] over the June 2012 quarter," Douglas said.
Conservative funds on average had returns of 5.3 per cent per annum over the four years to June 30 while balanced funds had an average of 3.3 per cent per annum and growth funds 2.5 per cent per annum.