SK Hynix (KOSE:A000660) Buyback Puts Its AI Memory Valuation Story Back In Focus

SK hynix (KOSE:A000660) has moved into focus after its board approved a share repurchase plan on 19 August 2026, alongside back to back investor presentations in Seoul at J.P. Morgan and Nomura tech tours.

Those announcements come after a sharp run in SK hynix’s share price this year, with a year-to-date share price return of 144.17% and a very large 1-year total shareholder return, even though the stock has pulled back 4.45% over the past week and 29.15% over the past 90 days as momentum has cooled recently.

Compare SK hynix’s buyback and recent share price swings with a hand picked group of semiconductor and infrastructure plays by scanning 56 AI infrastructure stocks.

SK hynix appears to be a powerful business story, supported by new share buyback plans and a sharp share price move. The next step is to assess whether that strength is already fully reflected in today’s valuation.

Most Popular Narrative: 48% Undervalued

The most followed narrative values SK hynix at ₩3,179,719 per share, compared with a last close of ₩1,653,000. That gap is built on a very specific view of future AI memory demand and profitability.

Accelerating demand for high-performance memory solutions, particularly HBM and next-gen DRAM, as AI workloads and advanced reasoning models proliferate, is expected to sustain double-digit revenue growth and expand margin through premium pricing on leading products.

Read the complete narrative.

Want to see what is baked into that SK hynix fair value? The narrative leans on rapid revenue expansion, high margins, and a future earnings multiple that assumes continued leadership in advanced memory.

Result: Fair Value of ₩3,179,719 (UNDERVALUED)

Have a read of the narrative in full and understand what's behind the forecasts.

However, this SK hynix narrative could be challenged if high capital spending strains cash flows or if tougher competition and geopolitics put pressure on pricing and margins.

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

Next Steps

With SK hynix attracting both enthusiasm and caution, it makes sense to look past the headlines and weigh the trade off between risk and reward for yourself. To see both sides of the story in one place, review the 4 key rewards and 2 important warning signs.

Looking for more investment ideas beyond SK hynix?

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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.

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