SK hynix
The HBM leader — NVIDIA's primary memory supplier through the boom.
You're looking at a company record: what this company does in the AI stack, and every chip, technology, facility and company it's linked to below.
Quotes are delayed/indicative; research only, never investment advice.
Photo: 4300streetcar · CC BY 4.0 · Wikimedia Commons
SK hynix bet on high-bandwidth memory years before the boom and won: it has held roughly half or more of the HBM market through 2024–25 (TrendForce estimates), supplied the HBM3/HBM3E in most NVIDIA flagships, and shipped the first HBM4 samples in 2025. In 2025 its operating profit passed Samsung's semiconductor division — a historic reversal driven entirely by AI memory. Its Yongin fab cluster is among the world's largest chip construction projects.
How this connects to the rest of the stack
This record's links at a glance — click a group to jump to it.
Supplies memory for
Supplied by
Competes with
Partner of
Sources
Record reviewed as of 2026-01-15 — see Methodology.