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Berkshire's $397B Bet Against an Overheated Market

https://www.disruptionbanking.com/2026/07/13/inside-berkshires-397-billion-bet-against-an-overheated-market/
26•emsidisii•1h ago

Comments

dinkblam•26m ago
all of the text implies the opposite of the headline?
elil17•26m ago
My favorite finance podcast (actually, just favorite podcast) does a variety of episodes related to this, including deep dives on the academic literature. Some highlights:

- "Do Expected Stock Returns Wear a CAPE": https://rationalreminder.ca/podcast/146

- "What about Warren Buffet?": https://rationalreminder.ca/podcast/335

cmiles8•23m ago
There’s really not much question we are in a giant bubble that’s broadly been fueled by AI hype. The only serious question is how do we get out of it.

In a controlled scenario the AI sector gets a severe correction with many AI-focused companies wiped out but broader damage more limited. In an uncontrolled scenario the AI bubble bursts and takes the whole economy with it.

The likelihood of a scenario where suddenly the economics of AI suddenly start to make sense and enough $ flows in to make the present valuations defensible seems around 5% now and rapidly falling towards zero.

matwood•7m ago
> In an uncontrolled scenario the AI bubble bursts and takes the whole economy with it.

How is the whole economy exposed to AI? Will Anthropic or SpaceX cratering threaten the entire financial system? NVDA will certainly correct, which is probably the biggest risk to the market, but then what? All the FCF being spent by Google, Amazon, MS, Meta, etc... will suddenly start flowing to dividends and stock buybacks again. It's not like their core business is selling AI. Apple will be able to get cheap RAM/chips again while also keeping their recently increased prices.

I could see an argument that the economy is currently being propped up by the hope of AI productivity gains, but that seems spurious.

EDIT

A comment above mentioned oil, and thus the inflation coming with prolonged high prices. That's way more of a concern than anything happening in AI.

rajnathani•20m ago
I would rename the title to “The Buffett Indicator shows an overvalued market”. For those curious of its definition (from the article):

> The Buffett Indicator, a ratio that measures the market cap of the entire stock market against the GDP of the United States, has hit a record of ~232%. Historically, anything above ~120% is a signal of the market being overvalued.

That being said, it’s not clear that the Buffet Indicator is fully relevant, as a lot of the US AI and AI hardware companies’ market caps which are driving the stock market valuation growth involve a significant portion of their revenue from outside the US, and thus this wouldn’t necessarily count fully to the US’s GDP (for example, tax entity workarounds for foreign obtained revenue).

bonesss•15m ago
It’s such an odd time investment wise…

We have a blooming oil war that could take chunks of the global economy with it, booming and teetering credit levels threatening collapse, the “AI” companies have a lot of tinkerbell magic and impossible returns needed to justify their stocks, major cash rich tech giants are suddenly hands-out pockets-out for big money, and … well: Elon is the worlds richest man/CEO who also shamelessly lies in public about being super great at a no-life action RPG he’s paying other people to play for him so he can look cool to his Twitter fans; Twitter is now maybe better understood as a market manipulation device; and Sam Altman seems distinctly truth challenged as a people pleaser who will tell you whatever numbers your wallet needs to hear… They are our 2026 IPO lords, trusted corporate leaders acting like extra shady manipulators.

I’m struggling because on the one hand, it seems like the time to hop out of the market, but on the other, whatever shady crap these guys do after it all goes ‘boom’ to save their wallets is only gonna reward people in the market.

It feels like gambling on whether they’re more incompetent or successfully corrupt.

sph•8m ago
How I view the market:

Short term: high volatility and uncertainty, feels more like gambling at a casino

Medium term: the world is too unstable, best to hold cash

Long term: dollar cost averaging always wins so depending how long your horizon is, it’s a good time as any to invest

Longer term: we all die

nadermx•6m ago
Na. Its just the status quoe with diffrent charectors, same game. Jobs/musk. Altman/gates. Etc
cmiles8•2m ago
There’s always money to be made in a bubble implosion. The challenge is there’s a very thin line between major bank and losing your shirt. Because of that most long terms smart investors just sit it out which is likely why you see Berkshire sitting on treasury bills.
chasil•6m ago
I have read another article recently indicating that the S&P 500 is overvalued compared to international indexes.

I may soon increase my 401k share of VTIAX.

https://www.telegraph.co.uk/money/investing/stocks-shares/go...

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Berkshire's $397B Bet Against an Overheated Market

https://www.disruptionbanking.com/2026/07/13/inside-berkshires-397-billion-bet-against-an-overhea...
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