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LIVE MARKETS-All bubble pre-conditions now met, but we're still not in one - UBS

ReutersNov 26, 2025 12:30 PM

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All PRE-CONDITIONS FOR A BUBBLE NOW MET, BUT WE'RE STILL NOT IN ONE - UBS

UBS's seven pre-conditions required for the stock market to be in a bubble have now been met, but we're still not yet in one, says the bank's global equity strategist Andrew Garthwaite.

"Historically, the P/E at a bubble peak has been 45x-72x on 12-month trailing earnings for 30-43% of global market cap versus Mag 6 today on 33x," explains Garthwaite.

In a 2026 outlook piece his teams said they see a further 11% upside for the MSCI AC world by the end of next year - a fresh record for the index that is currently just off all-time highs.

They also flag that market trading patterns look more like 1998, and that we seem far from catalysts that would mark a bubble peak.

Even so, UBS sees more of a chance of a bubble forming from Gen-AI than it has for other bubbly parts of the market in recent years.

That's owing to the "uniquely quick adoption rate of Gen AI and the threat of monetisation of government debt (which would lead to a move from nominal to real assets.)"

In fact they see a 35% chance of a bubble forming, which would justify the MSCI International World index .MIWO00000PUS rising to 1090.

"If AI increases productivity from 2028 half as much as TMT was temporarily perceived to have done, then we can easily justify 7000 on the S&P 500," they say, which is their first supportive factor for stocks.

The S&P 500 closed Tuesday at 6765.88.

But UBS thinks Gen AI - which they dub "the steam engine of the mind" - could actually increase productivity more than TMT did back in the late 1990s.

(Lucy Raitano)

EARLIER LIVE MARKETS POSTS:

DEFENCE SHARES COOL; BOFA SEES A BUYING WINDOW CLICK HERE

CALMER THAN IT COULD HAVE BEEN CLICK HERE

EUROPE BEFORE THE BELL: DRUGS, FED, UKRAINE CHINA, BUDGET CLICK HERE

MORNING BID: REEVES TAKES CENTRE STAGE CLICK HERE

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