Billionaire investor Paul Tudor Jones warns 2027 could be brutal for stocks

Legendary hedge fund manager Paul Tudor Jones has a warning for growth investors enjoying their profits from the AI boom: stocks could face a much tougher year in 2027.

Speaking on a CNBC interview published this week, the founder of Tudor Investment Corporation warned that a key source of support for US shares is weakening, just as government borrowing and rising oil prices threaten to add pressure.

“2027 is going to be really, really challenging for the stock market,” says Jones.

His trading outlook is equally blunt.

“I’ll be short the whole year. There just - there’s little value,” he says.

The support beneath stocks is shifting

Jones’s biggest concern is the balance between shares being taken out of the market and new stock becoming available to buy.

A key way he analyses this is by tracking flows.

“You’ve probably got the most negative flow picture for the US stock market that we’ve had since 2002,” he says.

His calculation weighs corporate buybacks and mergers against initial public offerings, additional share sales and “unlocks”, when restrictions expire and existing shareholders become free to sell.

“If I sum up all those, and then I subtract from that the IPOs, secondaries, unlocks, etcetera, then you’ve got certainly the most negative flow picture since 2009,” he says.

“So that underlying corporate support that was there year in, year out, is now really shifted.”

Jones pointed to SpaceX and prospective offerings from Anthropic and OpenAI as examples of the scale of potential supply.

Even exciting businesses can make life harder for the wider market if investors must absorb enormous amounts of new stock.

He sees parallels with the aftermath of the dot-com boom.

“Those were the easiest years to be short because you kept having these unlocks that just kept adding supply to the market,” he says.

Deficits could force a reckoning

Jones also warns that ballooning government deficits could trigger a market reckoning.

“We’re never going to fix these deficits until the market makes us,” he says.

He argues that politicians will resist raising taxes or cutting spending until financial pressure forces their hand. He compared that potential response with the emergency action taken during the 2008 financial crisis.

“No politician is going to voluntarily raise taxes or cut spending. They’re going to be forced to,” he says.

Asked whether markets were approaching that tipping point, Jones leaned towards yes.

“If you put a gun to my head, I’d say 60-40, we’re down that path,” he says.

In other words, he sees markets forcing action on deficits as more likely than not. He did not specify the timing or severity of that adjustment.

Long oil, bearish on stocks

Jones is positioned for higher oil prices, which he sees as another threat to shares.

According to CNBC, he is long oil and believes prices could rise another US$20 to US$25 after the midterm elections - a scenario he says the stock market would “hate”.

Higher oil prices could squeeze businesses and households, adding another obstacle for stocks next year.

A rally could come first

Despite his concerns, Jones sees scope for a strong finish to this year.

“If you just go back and look at midterm cycles, a whole variety of things, it would tell you that we should have a really, really strong fourth quarter coming out of the midterms,” he says.

“The market typically bottoms sometime late October, early November, and then you get a fourth-quarter push.”

Investor positioning also leaves him thinking that rally is possible. For now, his tactical focus is 31st December.

“Boy, it still feels like 1999, a two-speed market,” he says.

He sees a divide between businesses adopting AI, and those that are not, echoing the split during the dot-com boom.