Nikkei Plunges Over 2,000 Points Intraday as US Rate Fears Hit Chip Stocks

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The story

On the New York market on the 14th, semiconductor-related stocks fell sharply on concerns that rising interest rates would weigh on AI investment. In response, sell orders for semiconductor-related issues swelled in Tokyo right from the opening bell on the 15th, sending the Nikkei average down more than 2,000 points at one point. On 5channel threads, opinions were split over whether this drop marks the start of an AI bubble bursting or just a temporary correction. Some pointed out that because the Nikkei’s overall level is now much higher than before, the same point drop carries less relative weight than it used to. Many also voiced concern about individual investors who started investing through Japan’s NISA tax-free investment program being rattled by the volatility.

[Breaking] Nikkei average falls more than 2,000 points at one point, as chip stocks slide on US rate concerns

Concerns over the impact of higher interest rates on AI investment sent semiconductor-related stocks sharply lower in the New York market on the 14th, and sell orders for related issues are piling up in the Tokyo market right from the open.

Full details at source 2026/10/15 9:15

Source: newsdig.tbs.co.jp / Original article here

What people said

3AnonymousOct 15, 2026 09:24
An illusion called AI
21AnonymousOct 15, 2026 09:32
Re: #3
There's real substance behind it (data centers) and real-world utility, but for regular people it's nothing but costs getting passed down the chain. For the people trading stocks it's just a money game.
196AnonymousOct 15, 2026 10:31
Re: #3
The AI industry itself still has plenty of room left to grow.
226AnonymousOct 15, 2026 10:40
Re: #3
Everything in daily life is shifting over to AI. I barely even use search engines anymore.
5AnonymousOct 15, 2026 09:24
The screams of the "we're done for" crowd (オワタシア, a pun on "owata" — net slang for "it's over") are about to get wild.
105AnonymousOct 15, 2026 09:57
Re: #5
We'll be back down in the 10,000-yen range before long.
19AnonymousOct 15, 2026 09:31
If a full-blown AI bubble bursts, global stocks will be cut in half.
150AnonymousOct 15, 2026 10:09
Re: #19
Huh? "Half price, times 0.8, minus another 20%" (半値八掛け二割引, an old trader's saying for how crashes compound) works out to about a 70% drop — that's capitulation territory. For the Nikkei, 20,000 yen would be the floor.
20AnonymousOct 15, 2026 09:32
It just looks dramatic because the base level has ballooned. Back when the Nikkei was at 10,000, a 2,000-point drop would've been a huge deal — these days even 1,000 points can move easily.
157AnonymousOct 15, 2026 10:10
Re: #20
Up until about two years ago I was trading Nikkei mini futures, but now it's too scary unless I use the micro contracts.
27AnonymousOct 15, 2026 09:33
It'll probably shoot right back up to 70,000 on the Nikkei soon, so easy money. Makes working feel pointless.
30AnonymousOct 15, 2026 09:34
Re: #27
Why would it? If you work on top of investing you make even more. Double, double.
33AnonymousOct 15, 2026 09:35
Re: #30
Doubling it isn't realistic. If you're already pulling in tens of millions of yen a year from investing, there's no way a regular job keeps up 😭
64AnonymousOct 15, 2026 09:43
Re: #33
If you quit your job you'd just end up wasting your time on 5ch anyway. Better to keep working.
38AnonymousOct 15, 2026 09:37
The NISA crowd must be sweating bullets right now. Stocks are gambling.
43AnonymousOct 15, 2026 09:38
Re: #38
Mutual funds (投信) don't usually take that kind of beating.
48AnonymousOct 15, 2026 09:40
Re: #43
lol
Don't go acting like you know it all when you're just a rookie (トウシロ, slang for "amateur"), lol
49AnonymousOct 15, 2026 09:40
Re: #43
There was a time I thought the same thing too… (speaking from experience)
50AnonymousOct 15, 2026 09:40
Back at the start of October you guys were all hyped up celebrating. Now you're all mopey? You're annoying — why don't you just quit stocks already?
52AnonymousOct 15, 2026 09:41
Re: #50
I mean, it's been falling nonstop since the start of the week lol

Well, guess whatever had to come finally came, lol
65AnonymousOct 15, 2026 09:45
Looks like the drop's about to hit 2,500 points.
112AnonymousOct 15, 2026 09:58
Re: #65
It hit minus 2,500 at one point. My guess is it pushes to minus 3,000 once the margin-call festival (追証, forced top-up margin calls) kicks in this afternoon.
70AnonymousOct 15, 2026 09:46
Even if the AI bubble pops and stocks crash, over a 30-year span it'll still come out positive, so don't sweat it.
80AnonymousOct 15, 2026 09:49
Re: #70
I'll be dead in 30 years.
72AnonymousOct 15, 2026 09:47
Memory chips turning into near-commodities after a little time passes is an incredibly common pattern throughout history. Memory stocks trading at these lofty prices is just a historical flash in the pan (あだ花, literally "a flower that blooms but bears no fruit").
76AnonymousOct 15, 2026 09:49
Re: #72
So you're saying it's like the Dutch tulip bubble? lol
83AnonymousOct 15, 2026 09:50
Japan and US governments to invest/lend around ¥2 trillion for semiconductor plants under US-bound funding push
https://www.nikkei.com/article/DGXZQOUA146160U6A011C2000000/
106AnonymousOct 15, 2026 09:57
Bummer that I couldn't catch Oniya's YouTube Live because of work…
155AnonymousOct 15, 2026 10:10
Re: #106
Oniya's stream is scheduled for 12:30. He probably "got fat" (脂肪した, a jokey pun on 死亡した/"died" — net slang for getting wiped out financially).
120AnonymousOct 15, 2026 10:02
Isn't it just the people holding semiconductor stocks who are critically wounded here?
129AnonymousOct 15, 2026 10:04
Re: #120
I don't hold anything semiconductor-related, so right now I'm only down slightly.
134AnonymousOct 15, 2026 10:06
Re: #120
If anything I'm up enough that this sounds like it's happening in some other country lol
147AnonymousOct 15, 2026 10:08
IBM Albany's ecosystem
https://news.mynavi.jp/techplus/article/20240131-2873604/images/001.jpg
152AnonymousOct 15, 2026 10:09
Intel Oregon's ecosystem
https://images.squarespace-cdn.com/content/v1/66d7411326ba25266a3bb86a/2e58ef57-12d2-4cff-9926-a54b8c951ecc/Screenshot+2024-10-29+at+3.31.14%E2%80%AFPM.png

Background and Key Points of This Discussion

This sell-off is an extension of the broad selling in AI-related semiconductor stocks that spread through the New York market on the 14th, with the Tokyo market seeing a wave of related selling by association. Since Japan’s expanded NISA program took effect in 2024, individual-investor participation has grown, meaning market swings now hit closer to home for ordinary people’s everyday lives. The thread split over a single question: whether to view this drop as a “temporary correction in high-priced stocks” or as “a sign the AI investment bubble is bursting” — with points raised on both sides. At the same time, since the Nikkei’s overall level has climbed far higher than in the past, the point that the same-sized drop carries relatively less weight than before is worth keeping in mind as a way to read past views that get rattled purely by the size of the point drop.

※This article is excerpted and summarized from the 5channel (Breaking News+) thread “[Breaking] Nikkei average falls more than 2,000 points at one point, as chip stocks slide on US rate concerns.”

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