Kospi slides at open 3.36% on concerns over AI infrastructure spending
South Korea's Kospi index dropped 3.36% at open due to AI infrastructure spending concerns. Samsung Electronics fell 4.59%, SK hynix declined 5.1%, and other major firms also saw losses. U.S. stocks closed mixed, with Nasdaq and S&P 500 down, while the Dow rose. Oil prices fell on U.S.-Iran peace agreement optimism.
How this was made

The 30-second read
Why it matters
The broad index decline translates into immediate downside for major Korean equities, especially in the semiconductor, automotive, energy, shipbuilding, and defense sectors.
Market read
The Korean market opened sharply lower, with key industrial and tech stocks falling, reflecting heightened risk aversion to AI‑related capital spending.
What to watch
Currency strength (won appreciation) and oil price optimism may also be contributing to the market move.
Background
The article reports the opening session of the Korean market on 2026‑11‑03, highlighting a 3.36% drop in the Kospi due to worries about AI infrastructure spending ahead of U.S. midterm elections.
Ticker impact
Samsung Electronics fell 4.59% as the Kospi opened down 3.36% on AI spending concerns.
downward pressure on Samsung shares
The stock moved sharply lower in line with the index decline, indicating market sentiment is negative.
SK Hynix slumped 5.1% amid the same AI‑spending concerns that drove the Kospi lower.
downward pressure on SK Hynix shares
The decline mirrors the broader market sell‑off, reflecting heightened risk perception for memory makers.
Hyundai Motor decreased 1.57% as the Korean market opened lower on AI‑infrastructure spending worries.
downward pressure on Hyundai Motor shares
The move is smaller than chip peers but follows the overall market trend.
Market effects
Korean tech and industrial sectors face heightened risk as AI‑infrastructure spending concerns spread.
South Korean equities opened sharply lower, potentially pressuring regional indices.
The move may influence global risk sentiment toward AI‑related capital expenditures.
Counterpoint
If AI spending concerns are overstated, the sell‑off could be a buying opportunity for undervalued Korean chips.
Key entities
- companySamsung Electronics
South Korean semiconductor giant
- companySK Hynix
Memory chip manufacturer
- companyHyundai Motor
Automaker
- companyDoosan Enerbility
Energy equipment provider
- companyHD Hyundai Heavy Industries
Shipbuilder




