Chip stocks slide further as US inflation raises the risk of rate hikes
South Korea's KOSPI fell more than 8% as the chip sell-off deepened on US inflation fears that raised the risk of rate hikes. CNBC ties Dell's 11% drop on Wall Street to doubts about enterprise AI returns.
The Board Room · Leadership desk
SK Hynix fell 10.5% and Samsung Electronics fell 9%, leading the rout in South Korea, where the KOSPI share index plunged by over 8%.
| Figure | Value | Note | Claim |
|---|---|---|---|
| SK Hynix shares, South Korea | 10.5% fall | 3 | |
| Samsung Electronics | 9% fall | 3 | |
| KOSPI index, over | 8% fall | 2 |
What happened
- Samsung Electronics fell 9% and SK Hynix fell 10.5%, and the two chipmakers led the rout in Seoul.
- On Wednesday the S&P 500 fell 1.1% and the Nasdaq Composite lost 1.9% on Wall Street.
- Deutsche Bank's Jim Reid noted that a circuit breaker was triggered on the KOSPI earlier in the session.
- Pepperstone's Chris Weston singled out the breadth of price pressures across the US CPI basket as particularly concerning.
Why it matters
- What it costs cost Borrowers financing AI capacity face a higher rate assumption while the return case is under challenge, so projects not yet approved carry the added hurdle.
- Who has to decide decision Capex committees signing off this quarter must choose between locking spend at today's assumptions and holding some back until inflation data settles. Holding back gives up capacity; committing risks spend that later fails its return test.
- Who's exposed exposure Suppliers whose sales depend on enterprise AI spending are exposed to the payback question that CNBC links to Dell's fall.
The record points to two pressures, and the order in which they arrived matters. Deutsche Bank strategist Jim Reid said: "Markets have just had an incredibly tumultuous 24 hours, as a strong US CPI print was then followed up with mounting fears around the AI trade" [11]. Inflation came first and the AI doubts followed it. Pepperstone analyst Chris Weston said: "Further evidence of right-tail inflation risk in the US has reinforced the higher-for-longer rates narrative, with sellers emerging across risk assets and interest rate-sensitive equities coming under renewed pressure." [7]
The second pressure is the return on the spending itself. The Guardian relays CNBC's explanation for the Dell move: mounting concern that enterprise spending on artificial intelligence will not justify the AI buildout [6]. That is a news outlet's reading of a price move. The Guardian's account does not include a statement from Dell or any data on enterprise AI orders. Credit gives a second signal. Reid noted that it now costs more to insure some AI companies' debt, with CoreWeave one example [9]. The Guardian reads that as investor nervousness about leverage and borrowing levels [9].
The post gives different sizes for the same markets. Its own account has the KOSPI down more than 8% [2], while Reid's note puts it at 7.04% [13], a gap of more than 0.96 percentage points [14]. The Nikkei 225 is down 4.5% in late trading in the Guardian's account [4] and 5.08% in Reid's [13], a gap of 0.58 points [15]. These are readings from one trading session, and whether they hold is not yet known.
We think the two pressures compound for anyone borrowing to build AI capacity. A higher rate raises the return a project has to clear. Doubt about enterprise demand lowers the return it is expected to earn. Both land on the same budget line in the same quarter. We'd expect the projects that cleared their hurdle at older rates to be the first reopened at the next review.
What to watch
- The US PPI reading for September at 1.30pm BST, which shows whether producer prices confirm the breadth of pressure Weston flagged in the CPI basket.
- Whether the cost of insuring debt of AI borrowers such as CoreWeave keeps rising or eases over the next sessions.
- Any company disclosure of enterprise AI orders that would confirm or contradict CNBC's explanation for Dell's fall.
Clarity's read
What the record supports and how the coverage leans. The claims behind it follow.
Reality
- Evidence58
- Adoption
- Not scored
- Hype gap
- Not scored
- Incentives
- Not scored
- Confidence55
Claim ledger
Ranked by verification strength, evidence, and original report placement.
- [1]
The chip stock sell-off deepened, with signs of rising US inflation driving concerns about the risk of interest rate hikes and AI-linked stocks bearing the brunt.
- [2]
South Korea's KOSPI share index plunged by over 8%, extending recent losses.
- [3]
Samsung Electronics fell 9% and SK Hynix fell 10.5%, leading the rout in South Korea.
- [4]
Japan's Nikkei 225 was down 4.5% in late trading.
- [5]
On Wall Street on Wednesday the S&P 500 fell 1.1% and the Nasdaq Composite lost 1.9%.
- [6]
Dell's shares plunged 11%, which CNBC blames on mounting concerns that enterprise spending on artificial intelligence won't justify the AI buildout.
- [7]
Pepperstone analyst Chris Weston said: "Further evidence of right-tail inflation risk in the US has reinforced the higher-for-longer rates narrative, with sellers emerging across risk assets and interest rate-sensitive equities coming under renewed pressure."
- [8]
Chris Weston of Pepperstone said: "The breadth of price pressures across the CPI basket has been particularly concerning, challenging a market desperately in need of evidence of disinflation."
- [9]
Deutsche Bank strategist Jim Reid pointed out that the cost of insuring the debt of some AI companies, such as CoreWeave, has been rising; the Guardian describes this as a sign that investors are nervous about leverage and borrowing levels.
- [10]
The KOSPI saw a circuit breaker triggered earlier in the session given the scale of the declines.
- [11]
Jim Reid of Deutsche Bank said: "Markets have just had an incredibly tumultuous 24 hours, as a strong US CPI print was then followed up with mounting fears around the AI trade".
- [12]
US initial jobless claims data and the US PPI index of producer price inflation for September were due at 1.30pm BST.
- [13]
Reid's note put the KOSPI at -7.04% and the Nikkei at -5.08% after the overnight selloff in Asia.
- [14]
The Guardian's KOSPI figure (over 8%) exceeds Reid's figure (7.04%) by more than 0.96 percentage points.
- [15]
Reid's Nikkei figure (5.08%) exceeds the Guardian's late-trading figure (4.5%) by 0.58 percentage points.
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Sources
1 independent publisher whose own reporting we read for this story.
- theguardian.comTech stock sell-off intensifies as markets await UK GDP report for August – business live
1 article · October 14, 2026
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