The country’s biggest superannuation funds have invested more than $143 billion in retirement savings, or about 10 per cent of their holdings, in stocks exposed to the artificial intelligence boom, but say they are not concerned that the rapid growth in valuations is creating a bubble poised to burst.

The Australian funds have followed the world’s other major investors in piling into the seven largest technology stocks, which have seen their shares soar some 300 per cent since the launch of ChatGPT in late 2022.

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