The Definitive Guide toAI Data Centers
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HBM supplier shares of 2026 global HBM bit output: SK hynix ~50% (59% in 2025), Samsung ~28% (20% in 2025), Micron the remainder; SK hynix over half of NVIDIA’s 2026 HBM supply

~50% / ~28%estimate

Value kindestimate — Interpret this value according to its displayed kind, scope, source, and as-of date.
ScopeReported market estimates; allocation is contractual — these are market reference points, not a buyer’s queue position.
CaveatSamsung’s HBM4 yield reportedly reached ~80% by August 2026, so the second-half 2026 split can move toward Samsung.
As of2026-03
SourceTrendForce news, 9 March 2026 (citing Korean press reports): SK hynix will still lead global HBM bit output with a 50% share, down from 59% in 2025, while Samsung’s portion climbs from 20% to 28%; SK hynix is to take over half of NVIDIA’s total 2026 HBM supply, while Samsung is set to lead Vera Rubin-specific HBM4. · Share paragraphs (global bit output; NVIDIA supply)
Reviewchecking…review by 2026-10-16 · standard cadence
Recorded changeslast 2026-09-16 · 2 revisions tracked
Claim idsk-hynix-50-55-60-70-of-rubin-hbm4-samsung-25

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