“Certainly in the past five years it’s increased dramatically,” he said.

“I think it has a lot to do with the fact that technology is becoming increasingly prominent and people around the world are more accustomed to companies like Google and Apple and therefore want exposure to these companies."

Mr Sokulsky said new technology has also allowed SMSF trustees, in some cases, to access global equities as easily as they can domestic companies, depending on the amount of assets held within their SMSF.

However, despite increased allocation to global equities, SMSFs' allocation to the asset class remains too low.

“A 15 per cent allocation is probably underweight to what our asset allocation indicates it should be for an individual investor,” he said.

Platinum Asset Management investment specialist Douglas Isles agrees the current exposure of SMSFs is too low, particularly among unadvised SMSF trustees.

“The resources ‘super cycle’ appears to have passed us by and people are not getting exposure to a number of the major growth drivers of the world,” he said.

“We think there are bigger risks in having too much money in Australia than having a significant allocation to a global portfolio.”