# SK Hynix and Micron Both Cross $1 Trillion Valuation Within 24 Hours as AI Memory Demand Explodes

*2026-05-27 14:01 UTC · Business · 1 min read*

> SK Hynix and Micron each topped a $1 trillion valuation within a day of each other as AI-driven high-bandwidth memory demand sends chip stocks soaring.

Memory-chip giants SK Hynix and Micron Technology each surpassed a $1 trillion market capitalization for the first time within 24 hours of each other, fueled by insatiable demand for the high-bandwidth memory (HBM) that powers AI accelerators. SK Hynix shares jumped as much as 13% in Seoul on Wednesday to a record high, while Micron surged more than 19% the prior day. UBS tripled its Micron price target from $535 to $1,525 a share.

Both firms dominate HBM, the specialized chips stacked alongside Nvidia's AI GPUs. SK Hynix, a key Nvidia supplier, has already sold out its entire 2026 HBM production capacity. Its stock has climbed roughly 250% since the start of the year and more than 1,200% since April 2025; Micron is up about 214% year-to-date.

SK Hynix becomes only the second South Korean company and the third Asian firm to enter the trillion-dollar club, after Samsung Electronics earlier this month and Taiwan's TSMC. The KOSPI index rose as much as 2.9% to a record 8,457 points.

## Sources

- [euronews.com](https://www.euronews.com/business/2026/05/27/memory-chip-giants-sk-hynix-and-micron-cross-1tn-valuation-amid-ai-mania)
- [siliconangle.com](https://siliconangle.com/2026/05/26/micron-sk-hynix-surpass-1-trillion-valuation-milestone-surging-ai-memory-demand/)
- [cnbc.com](https://www.cnbc.com/2026/05/27/sk-hynix-shares-ai-chip-rally-1-trillion.html)

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TechTools News · https://techtools.cz/tools/news/article/1723-sk-hynix-and-micron-both-cross-1-trillion-valuation-within-24-hours-as-ai
Česká verze: https://techtools.cz/tools/news/clanek/1796-sk-hynix-i-micron-prekrocily-behem-24-hodin-oceneni-bilionu-dolaru-poptavka-po