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    SK hynix (KOSE:A000660) And The AI Memory Case After A Sharp Pullback

    Simply Wall St·10/17/2026 22:36:15
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    SK hynix (KOSE:A000660) has caught investor attention after a sharp pullback, with the share price down about 27% over the past month and roughly 31% over the past 3 months.

    Even after this recent slide, SK hynix still carries strong trailing performance, with the year to date share price return at 87.9% and the 1 year total shareholder return at 174.1%. However, the sharp 30 day drop of 27.1% suggests momentum has cooled and risk perceptions have shifted quickly around the current ₩1,272,000 level.

    Compare SK hynix's sharp pullback with other high quality semiconductor and AI infrastructure plays by scanning our hand picked 55 AI infrastructure stocks for potential opportunities.

    After a 27% slide yet still very strong 1 year gains, SK hynix now presents a different balance between optimism and anxiety. Does the current valuation still compensate you for the volatility just experienced?

    Most Popular Narrative: 59.5% Undervalued

    Against the last close at ₩1,272,000, the most followed narrative for SK hynix points to a fair value of ₩3,141,024.76 using an 11.54% discount rate. That gap frames the recent share price pullback less as a trend break and more as a stress test of how much investors trust the long term AI memory story.

    Robust investment and capacity expansion, including CapEx in the high KRW 40 trillion range for 2026 focused on M15X, Yongin Fab 1, new packaging lines and M17 NAND, is intended to increase output of AI focused memory and can support higher long term revenue and operating profit if demand continues to absorb that capacity. Close partnerships with large AI and GPU customers, including multiyear HBM co development and supply work with NVIDIA and around 10 long term agreements that carry deposits and volume commitments, are building multi year order visibility that can smooth earnings and cash flow compared with past memory cycles.

    See why 87 investors see SK hynix as 60% undervalued.

    Result: Fair Value of ₩3,141,024.76 (UNDERVALUED)

    Still, SK hynix's heavy planned CapEx near the high ₩40 trillion range, along with ongoing geopolitical friction around China exposure, could both unsettle that undervalued AI memory narrative.

    Find out about the key risks to this SK hynix narrative.

    Next Steps

    Sentiment around SK hynix is split, with sharp gains on one side and fresh volatility on the other. Move quickly and interrogate the details yourself. To weigh both the biggest concerns and the most compelling positives in one place, review the 4 key rewards and 2 important warning signs.

    Looking for more ideas beyond SK hynix?

    If SK hynix has you rethinking where the next opportunity might come from, consider using this pullback as a prompt to widen your radar with fresh candidates.

    • Target potential mispricing by scanning the 191 high quality undervalued stocks, focusing on companies that combine solid fundamentals with pricing that may not fully reflect their underlying business strength.
    • Stack potential income streams by reviewing the 215 dividend fortresses, concentrating on higher-yield payouts backed by businesses with durable cash generation.
    • Prioritise resilience by filtering for a 234 resilient stocks with low risk scores, keeping financial risk indicators front and centre before you commit new capital.

    This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.