Asian markets fluctuated Tuesday as investors assessed the latest tech rally on Wall Street amid worries a bubble is forming in the sector, while mixed signals from Federal Reserve officials fed uncertainty over its next interest rate move.

A flood of multi-billion-dollar investment into artificial intelligence has been a key driver of the surge in mostly technology equities across the globe this year, sending valuations to record highs.

The rally has been helped by easing trade tensions since US President Donald Trump’s April tariff bombshell and expectations that the Fed will continue lowering borrowing costs

There is also a fear of missing out, in turn pushing prices up further, but there is increasing talk that the gains may have gone too far — with most of the gains coming from the

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