Semiconductor Stocks Plunge — 5ch: ‘Buy Now Before It’s Too Late! Hurry!’

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The story

A thread went up on 5ch’s “Nandemo Jikkyo G” board reporting a sharp drop in semiconductor-related stocks. Shares that had been climbing on AI data-center demand — led by Kioxia, whose mainstay is NAND flash memory — fell across the board, and the thread filled with a mix of bulls who decided to buy the dip and cautious posters sensing the bubble’s end. Some pointed out that Kioxia’s technology is storage, a different beast from GPU computing power, and that it had simply gotten swept up and overheated by the AI rally — leaving posters divided on whether this drop is a temporary correction or a genuine turning point.

What people said

1AnonymousNov 5, 2026 09:08
Imagine buying Kioxia in a last-minute rush yesterday lmaooooo
5AnonymousNov 5, 2026 09:11
The ones who can buy here are the ones who end up winning, you know
7AnonymousNov 5, 2026 09:13
Cash buyers will be the winners in 5 years
Margin traders are just bait for the vulture funds lol
8AnonymousNov 5, 2026 09:13
This market's scary to watch because there are so many beginners who've never experienced a crash
11AnonymousNov 5, 2026 09:15
Value investor me, just watching from the sidelines
15AnonymousNov 5, 2026 09:17
Re: #11
Same here, but it's gone up like crazy lol
21AnonymousNov 5, 2026 09:17
Re: #11
Hard to believe, but Kioxia was actually treated as a value stock for a while
26AnonymousNov 5, 2026 09:19
Re: #11
I opportunistically bought Honda when it crashed from the EV-related special loss, and it's gone up like crazy lol
Unrealized gains over +30%, and the real dividend yield is over 5% — all I can do is laugh
23AnonymousNov 5, 2026 09:18
My friend's wife apparently just started investing — on top of her NISA (Japan's tax-free investment account) she's doing individual stocks too
When I asked, she said after carefully picking stocks she ended up buying SoftBank
Wonder how that's going for her
25AnonymousNov 5, 2026 09:19
Re: #23
Well, if you hold long enough it might go up eventually
29AnonymousNov 5, 2026 09:20
Re: #23
Looking at the midterm election results, that one's probably staying frozen for a while ("frozen" = slang for a stock stuck at a loss you just hold onto)
30AnonymousNov 5, 2026 09:22
Today's starter pack for beginner investors
34AnonymousNov 5, 2026 09:26
Re: #30
Aren't all of them fine except the short bets and solar?
89AnonymousNov 5, 2026 10:19
Re: #30
Do people like this actually exist? lol
31AnonymousNov 5, 2026 09:22
So, um
Did anyone buy Kioxia after seeing the news that Kiritani-san bought it? (a famous individual investor known for chasing shareholder perks)
91AnonymousNov 5, 2026 10:22
Re: #31
Looking at the Yahoo comments, there are a few scattered ones like 'but Kiritani bought it…'
32AnonymousNov 5, 2026 09:23
So, does Kioxia actually have a future? If you're holding for like 5 years, I think it's actually not bad
33AnonymousNov 5, 2026 09:25
Re: #32
Buy now or you'll miss out! Hurry!
35AnonymousNov 5, 2026 09:28
Re: #32
Not for me
Even though people lump it all together as 'semiconductors,' Kioxia's mainstay is NAND flash, which is a different thing from NVIDIA's GPUs
NAND is basically mass storage, not a computing chip like a GPU
Looked at as mass storage, its rivals are Samsung, Micron, SanDisk, etc. — there's already strong competition there
41AnonymousNov 5, 2026 09:32
Re: #35
Then why has it been going up until now? 🤔
49AnonymousNov 5, 2026 09:36
Re: #41
It's the massive investment AI companies are pouring into data centers
And the people funding that investment have recently started thinking, 'ok, we get the future potential, but when does this actually turn a profit?'
59AnonymousNov 5, 2026 09:41
Re: #41
It's true that data center demand is giving NAND itself a tailwind

Going a step further, Kioxia wants to let GPUs access NAND directly
Right now, GPUs pull data out of NAND storage and do all their work on a 'desk' called HBM (high-bandwidth memory)
Because of that, HBM is effectively the bottleneck on AI computing power
If GPUs could manipulate NAND data directly, effective computing power would jump dramatically
This tech is still in the research stage, but that narrative fused with AI demand and got the stock price overheated
37AnonymousNov 5, 2026 09:28
If fewer people participate, won't the whole thing go down…
40AnonymousNov 5, 2026 09:31
Re: #37
Participants are surging, not shrinking
39AnonymousNov 5, 2026 09:30
SSD price hikes just won't stop
Kioxia's actually developing a lot of new tech
It'd be a company on a meteoric rise if the vulture funds weren't hunting it
61AnonymousNov 5, 2026 09:44
Re: #39
To begin with, wouldn't you have made more money just buying SSDs instead of the stock?
48AnonymousNov 5, 2026 09:36
Honestly, at this point the P/E has dropped so much it's a buy
There's no way it stays at this level going forward
52AnonymousNov 5, 2026 09:38
Re: #48
Even before that — the broke guys here and the old men from Kenmo (5ch's left-leaning news board) are celebrating the drop like crazy, so it's a buy
51AnonymousNov 5, 2026 09:37
China's catching up fast, so semiconductors aren't going to stop
The plants are running flat out
55AnonymousNov 5, 2026 09:40
Regardless of the Democratic Party, the power capacity in America's data-center hubs was already hitting its limits, so growth was going to get throttled gradually anyway
It comes down to whether a certain amount of political cutting actually goes through, so the end result won't change much
But losing Texas will clearly have an impact

Re: #51
Production capacity is maxed out, plus there's a backlog waiting for future capacity to come online
The current situation is that data center demand keeps climbing and there's no margin to make money except through price hikes
If things cool off, profits simply drop
64AnonymousNov 5, 2026 09:49
Not totally sure I get it, but does that mean a bunch of Kurumi-chans showed up? (a 5ch meme nickname, apparently for overconfident newbie investors)
66AnonymousNov 5, 2026 09:51
Re: #64
Everyone convinces themselves they'll be the one who wins
But reality is cruel, isn't it
68AnonymousNov 5, 2026 09:52
Still, I don't think data-center regulation is actually going to move forward in practice, so I bought a lot more of the related stocks yesterday and today.
77AnonymousNov 5, 2026 09:57
Re: #68
The whole 'DC regulation' debate is really just dressing up power-grid connection limits and local infrastructure caps as political regulation — it's closer to reflecting reality than being a political choice
New applications for grid connection are already routinely waiting 5+ years
So there's a strong whiff of 'does stopping a multi-year plan for a political photo-op even change anything?' to it
70AnonymousNov 5, 2026 09:53
(´;ω;`) My SOXL is gooooooooone (SOXL = a leveraged semiconductor-sector ETF)
83AnonymousNov 5, 2026 10:07
Just hurry up and lower memory prices already
84AnonymousNov 5, 2026 10:09
Re: #83
Not happening
Data centers will just move to wherever regulations are looser
93AnonymousNov 5, 2026 10:26
Kioxia is just an SSD maker that was absurdly cheap — the moment demand drops, it'll be the first one cut
Its technology is second-rate

Background and Key Points of This Discussion

Kioxia’s mainstay is NAND flash memory, which makes it a storage company rather than a direct competitor to the GPUs and HBM (high-bandwidth memory) at the center of the AI boom. With that distinction in mind, the thread’s analysis held that the stock’s rise had been driven by growing NAND demand from data-center investment, plus expectations around future technology (still in the research stage) that would let GPUs access NAND directly. On the other hand, some pointed out that the expansion of U.S. data centers faces a physical constraint — waits of over 5 years to connect to the power grid — which reflects reality more closely than talk of political regulation does. It’s also worth noting, when considering this overheated market, that Kiritani-san is a well-known individual investor famous for chasing shareholder perks, and that a certain number of beginners tend to follow whatever stock he buys.

※This article is compiled and summarized from the 5ch (Nandemo Jikkyo G) thread “Semiconductor stocks going down wwwwww.”

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