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KOSPI edges down 0.4% as Samsung, SK Hynix shares climb

South Korea's KOSPI index fell 0.4%, despite gains in Samsung Electronics and SK Hynix. This recovery in chip stocks amid AI demand counters fears of Chinese competition.

BRIC Team
By BRIC Team · BRIC.TV
Published Oct 21, 2026 · 2 min read · 2 views
KOSPI edges down 0.4% as Samsung, SK Hynix shares climb

Key Takeaways

  • •South Korea's KOSPI index rebounded 1.6% due to chipmaker stock recovery
  • •AI technology demand boosts investor confidence despite Chinese competition fears
  • •Other Asian markets declined, led by China's mainland market losses
  • •Oil prices rose amid geopolitical tensions, adding to inflation concerns

South Korea's KOSPI index edged down 0.4% on Wednesday, despite a rally in chipmaker stocks. Samsung Electronics climbed 2.8%, while SK Hynix rose 2%, both managing to recover from earlier losses sparked by worries over competition from China. These gains were significant, helping to offset fears about Chinese memory-chip manufacturer ChangXin Memory Technologies, which is reportedly closing the technology gap with more established industry players.

The sharp selloff on Tuesday had investors on edge. But the ongoing demand for artificial intelligence (AI) technology helped restore confidence in the sector. While South Korea's market showed resilience, the story was different across other Asian markets. China's mainland markets bore the brunt of the losses, with the Shanghai Shenzhen CSI 300 down 1.4% and the Shanghai Composite falling 0.9%. Australia's S&P/ASX 200 dropped 0.6%, and Hong Kong's Hang Seng edged down 0.1%. In contrast, Japan's Nikkei 225 managed a slight uptick of 0.1%, while India's Nifty 50 slipped 0.4%.

Chinese stocks faced mounting pressure despite trade data that exceeded expectations. The pressure came as subdued consumer inflation pointed to continued weakness in domestic demand, and rising producer prices added to the cost pressures. These elements contributed to the broader decline seen across Asian markets.

Over in the U. S., Wall Street wrapped up Tuesday on a slightly lower note, dragged down by mixed earnings reports from major banks. However, during Asian trading hours, U. S. futures showed some stability. S&P 500 futures ticked up 0.15%, and Nasdaq 100 futures remained mostly unchanged.

Meanwhile, oil prices kept climbing. Geopolitical tensions in the Strait of Hormuz and renewed strikes on Saudi Arabia fueled concerns over supply, pushing Brent crude near $106.50 per barrel and West Texas Intermediate (WTI) to $94.40. These rising oil prices have added to inflationary pressures, with investors eagerly awaiting the release of U. S. Consumer Price Index (CPI) data.

Economists are projecting that headline inflation in the U. S. will rise to 3.6% year-on-year, with a monthly increase of 0.6% following August's 0.4% rise. Core CPI is expected to climb 0.2% month-on-month. The outcome of this data could play a critical role in shaping the Federal Reserve's future monetary policy decisions.

As the U. S. corporate earnings season unfolds, investors have their eyes on technology companies. They are looking for indications that investments in AI are beginning to pay off. Major banks like JPMorgan Chase, Goldman Sachs, Citigroup, and Wells Fargo have already disclosed their results, while Bank of America and Morgan Stanley are set to announce their earnings later on Wednesday.

New York Fed President John Williams suggested that the central bank might contemplate one more rate hike this year as a measure to control inflation. However, he indicated that there seems to be no need for additional increases by 2027.

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