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The story
According to the Nikkei, total global stock market capitalization stood at $154 trillion as of November 5, down $3.5 trillion (roughly ¥550 trillion) from the previous day. The drop came after the US Democratic Party — which has campaigned on data center regulation — made major gains in the midterm elections, reversing a market that had been built on the assumption of ever-expanding AI investment. On 5ch, discussion spread from a basic debate over whether this kind of market-cap “loss” even represents real money disappearing, into doubts about whether AI is generating returns that match the investment poured into it, concerns over US political polarization, and worries about China’s data center expansion.
The AI stock rally in global equity markets is going into reverse. The US Democratic Party, which has campaigned on data center regulation among other things, made major gains in the midterm elections, casting a shadow over the expansion-focused investment thesis that had underpinned the market. The sell-off in AI stocks wiped $3.5 trillion (roughly ¥550 trillion) off global market capitalization in a single day.
According to QUICK FactSet, total global stock market capitalization stood at $154 trillion as of the 5th, down $3.5 trillion from the 4th. On the 6th, Tokyo Stock Exchange’s Prime Market also lost ¥77 trillion in value…(1,061 characters remain in the paid edition)
Nikkei, November 6, 2026, 18:00
Source: nikkei.com / Original article here
What people said
It's like asking: if you bought ramen for 400 yen at the supermarket yesterday, and today it's on sale for 200 yen, did you just "lose" 200 yen?
If you bought stock believing it was worth however many yen, that's on you.
That's because the dollar and yen are losing value right along with it
Pretty soon a carton of eggs will buy you a share of Kioxia (the memory-chip maker)
Saying stuff like "we're slowing down" because they can't meet expectations just sounds like a lame excuse
Yeah, I feel that too
We're at the stage of hitting pause for a bit to hear what us earthlings think (posting like it's an AI itself, lol)
When a stock price drops, it just means someone sold low and someone else bought at that same price
Prices go up and down, but nothing is actually "lost"
What are you, in elementary school? lol
That's right
When the stock price drops, more buyers show up
If you push it down deliberately,
whoever
buys it cheap
makes a killing
Trump knows this and used it constantly — that's why he was running wild
https://x.com/biglizardswife/status/2118041631949717657
Well, that's about all Congress can do at the federal level
State governments and legislatures handle plenty of other things as usual
Before worrying about how dangerous it'd be not to regulate generative AI, that question is obviously the far more important one
There are only two things in this world that create value:
"added value" and "credit creation"
Generative AI has sure created a whole lot of "credit creation" (i.e., speculative hype, not real value)
Hoping the money flows into solid defensive stocks tied to domestic demand lol
The people in that market are already buried in debt and have no money left
This is a country that would drain the entire Yellow River dry if left unchecked
"Drain the entire Yellow River dry" — are you okay in the head?
Seems like quite a lot of people, yeah.
Because the real problem is that oil flow out of the Middle East is stalled
No amount of effort is going to stop prices from climbing until that reality gets solved
We're just going to end up with even more foreign workers
If you've got a problem with that, go bring Japanese nationals to work the job sites yourself
Starting to realize it's not going to make money
That's not really a matter of "realizing" it or not, lol
People are investing because they believe there's a return to be had
People are investing because they believe there's a return to be had
It's not like Windows, where you build it once and sell countless copies of the same thing
You've got to keep upgrading the servers to the newest ones too, so no amount of money is ever enough
Actually, even keeping it at the absolute latest and greatest, you can still lose customers
Because what customers actually want is "good enough and cheap enough"
Let's just hope it doesn't end with China running wild with cyberterrorism against a Western AI that's stopped evolving
Just cut the connection, simple as that
Chinese AI will hit its ceiling soon too
With the global population shrinking, I do think AI is necessary, but it should be restricted to corporate use only
Wasting precious electricity on dumb porn generation is insane
Background and key points of this discussion
A “drop” in market capitalization just means the market value of shares people hold has fallen — no actual cash disappeared. As one commenter in the thread pointed out, “when a stock price falls, it just means someone sold low and someone else bought at that same price,” so there’s a gap between the impression the headline gives and how the mechanism actually works. Behind this lies a concern that’s been raised for a while now: that the massive data center investment powering the AI boom still hasn’t generated returns to match it. The immediate trigger for the sell-off appears to have been the US Democratic Party’s strong showing in the midterms on a platform of tighter regulation. Opinion in the thread was split over whether this drop is a temporary correction or the start of a genuine unwinding of the AI investment boom, with voices questioning AI’s profitability itself coexisting alongside those who see it as simply money rotating out of semiconductor stocks into defensive ones.
*This article is excerpted and summarized from the 5ch (News Speed+) thread “World Stock Markets Lose ¥550 Trillion in a Day as AI Investment Boom Reverses on Democratic Landslide.”
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