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SK Hynix stock jumps 5.9% on AI demand and activist stake

au.investing.com — October 21, 2026 at 05:01 AM UTC

SK Hynix stock surged 5.9% to ₩1,294,500 on Wednesday, recovering from recent losses driven by AI infrastructure spending concerns. The rally was sparked by Super Micro Computer's strong earnings, which reinforced demand for AI servers and the high-bandwidth memory chips SK Hynix supplies. Activist fund Align Partners disclosed a 1.5% stake in SK Group, arguing SK Hynix's strong performance is discounted through intermediate holding layers. Domestic analysts added that current valuations already price in a potential 2028 memory downcycle that hasn't materialized, making the correction seem overdone. The KOSPI's sharp rise triggered its first buy-side sidecar since late August, with easing oil prices and stabilized U.S. Treasury yields supporting risk appetite. Institutional and retail investors returned to oversold positions amid these tailwinds.

With a significance score of 1.3, this news ranks in the top 45% of today's 32437 analyzed articles.

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