Key takeaways
- Founded in 1983 as Hyundai Electronics; spun off and left technically insolvent after the Asian financial crisis.
- SK Group acquired it in 2012, providing the cash, scale and patience the previous owners lacked.
- A 2021 all-in bet on HBM, dismissed by many as niche, made it the sole 12-Hi HBM3E supplier to NVIDIA for 18 months.
- By 2026 it holds over 50% of the HBM market; Q1 2026 revenue hit ₩52.6 trillion at a 72% operating margin, and its market cap crossed $1 trillion.
- 1983 Founded as Hyundai Electronics Industries to build a memory-chip business for South Korea inside the Hyundai chaebol.
- 1996 Lists on the Korea Exchange.
- 2001 The Asian financial crisis exposes the chaebol’s balance sheet; Hyundai Electronics spins off as Hynix Semiconductor, technically insolvent, and creditors take it over.
- 2002 It sells stakes to anyone willing to buy in and goes through one of the largest corporate restructurings in Korean history.
- 2005 It emerges from creditor management, and survives.
- 2012 SK Group acquires the company, renaming it SK Hynix and bringing the cash, scale and patience the previous owners could not.
- 2014 It acquires LG Siltron’s silicon-wafer business.
- 2020 It buys Intel’s NAND flash business for $9 billion, becoming the world’s number-two NAND maker overnight.
- 2021 SK Hynix bets the company on HBM; most of the industry calls it a niche, while SK Hynix calls it the only memory that matters for AI.
- 2023 It becomes the first memory maker to mass-produce 12-Hi HBM3.
- 2024–2025 It is the sole supplier of 12-Hi HBM3E to NVIDIA’s GB300 for 18 months, as Samsung fails to qualify.
- Q1 2026 A record quarter: revenue of ₩52.6 trillion (around $35.5 billion) at a 72% operating margin, both all-time highs.
- May 2026 Market capitalisation crosses $1 trillion, only the second Korean company ever, with the stock up roughly 1,005% in twelve months. CEO Kwak Noh-jung: “HBM demand for the next three years far exceeds our supply capacity.”
- 2026 HBM market share above 50% makes SK Hynix the lead supplier of memory for the AI cycle.
SK Hynix’s story is one of the great corporate survivals: technically insolvent and run by creditors in 2001, it reached the trillion-dollar club by 2026. Memory was always a brutal cycle business, and SK Hynix turned the latest cycle, AI, into something closer to a structural rent. Here is the journey, year by year.
The pattern is the point
From insolvent in 2001 to the trillion-dollar club in 2026, SK Hynix shows what the hardest businesses can do in the hands of the most patient owners. Memory was always a cycle; the HBM bet turned the AI cycle into a structural advantage. The deepest lesson is ownership: SK Group bought a near-dead asset and held it long enough for one well-timed wager to compound into the longest trade of the cycle.
