KOSPI Opens 2.99% Lower as Alphabet Sinks 12% [2026]
The KOSPI index in South Korea opened 2.99% lower at 5,760.35 on Friday, October 30, 2026, due to a tech sell-off in the U.S. Alphabet's 12% drop after missing revenue expectations contributed to the decline, affecting chip stocks like Samsung Electronics and SK Hynix.
How this was made
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The 30-second read
Why it matters
The article links Alphabet's earnings miss to a broader market reaction, highlighting the interconnectedness of US tech results and Asian semiconductor stocks.
Market read
US earnings miss drives Asian market sell‑off, especially in semiconductor‑heavy indices.
What to watch
Strong cloud growth and record earnings at Samsung indicate underlying demand resilience despite short‑term AI concerns.
Background
A technology sell‑off on Wall Street triggered a sharp opening decline in South Korean equities, with the KOSPI down nearly 3% as AI‑spending concerns spread.
Ticker impact
Alphabet reported Q3 revenue of $127.58B, missing expectations, causing shares to fall more than 12%.
likely continued pressure on Alphabet and related AI stocks
The miss is fresh, large‑cap, and triggered a double‑digit move, indicating immediate downside.
Samsung Electronics fell 3.66% on the KOSPI open despite record quarterly earnings, as AI‑spending doubts weigh on chip demand.
likely further downside for Samsung amid sector pressure
The move is directly linked to the same AI‑spending narrative that moved the broader market.
SK Hynix dropped 6.82% on the KOSPI open, despite a profit surge, due to AI‑spending concerns.
likely further pressure on SK Hynix as sector sentiment stays weak
The decline is a fresh reaction to the same catalyst affecting peers.
Market effects
AI‑spending doubts pressure semiconductor and broader tech sectors.
KOSPI opened ~3% lower, with chip‑heavy index bearing the brunt of the sell‑off.
US tech earnings miss cascades to Asian markets, highlighting cross‑border sensitivity to AI spending outlooks.
Counterpoint
Alphabet's revenue still grew 25% YoY and cloud segment beat expectations, suggesting the dip may be overdone.
Key entities
- companyAlphabet
Parent of Google, reported Q3 earnings miss.
- companySamsung Electronics
Korean chipmaker, fell on AI‑spending concerns.
- companySK Hynix
Korean memory chipmaker, dropped amid the same concerns.
