Google owner Alphabet reached a market value of $3 trillion for the first time yesterday.
Shares in the company rose nearly 4 per cent to $250 – a record high.
Alphabet joined fellow tech titans Apple and Microsoft in hitting a $3 trillion valuation.
AI chipmaker Nvidia, the world’s most valuable company, boasts a market cap of $4.25 trillion (£3.1 trillion).
Tech and AI-linked stocks have powered Wall Street’s main indexes to record highs.
Kim Forrest, at Bokeh Capital Partners, said: ‘There has been no other [sector] in the past 18 months, maybe even two years, that has had such excitement from investors.’

Milestone: Google-owner Alphabet has joined fellow tech titans Apple and Microsoft in hitting a $3 trillion valuation
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