Particle.news

KOSPI Plunges as Chip Stocks Drive Sharp Multi‑Day Sell-Off

Investor confidence has been shaken by rising oil after renewed Middle East attacks, heavy foreign selling, ETF rebalancing, competition worries, cooling AI demand

Overview

  • The KOSPI suffered a steep correction on Tuesday with intraday losses topping 6 percent and some reports placing the single-session decline above 7 percent, pushing the index to its lowest level since late July.
  • Large-cap technology names led the rout as Samsung Electronics and SK hynix plunged roughly 7–10 percent in the most recent sessions, deeply weighing on the market given their heavy index weight.
  • Foreign investors were net sellers in large amounts on Oct. 13, with trading reports showing outflows of about 4.5 trillion won by day’s end, a flow that amplified the decline while domestic institutions and individuals partly absorbed sales.
  • Analysts and traders pointed to a mix of near-term triggers: higher oil prices after renewed Houthi attacks raising inflation and Fed policy concerns, semiconductor ETF rebalancing and reports of rapid advances by China’s CXMT that threaten chip demand and pricing.
  • Markets are awaiting U.S. consumer price data and major corporate earnings for fresh direction, and further oil-driven inflation or continued foreign outflows could deepen losses and increase volatility for Korean households and institutional portfolios.