Micron: The Second Source Customers Wanted to ExistNarrow moat
SK hynix (SKHY) — moat facet
Micron's most valuable asset against SK hynix is not a process node; it is an American address, and buyers pay for it whether or not it wins on merit.
Micron competes in both of SK hynix's markets, and its most valuable asset in doing so is its address.
Every large buyer of memory has spent the past few years constructing supply chains that do not depend on a single country. Two of the world's three DRAM producers are Korean, headquartered close enough to share a weather forecast, let alone a geopolitical event. For a hyperscaler committing tens of billions to AI infrastructure, having an American supplier qualified is not a preference; it is a risk-management requirement, and it gets paid for.
This makes Micron unusually resilient as a competitor. It does not need to be better. It needs to be qualified and adequate — and SK hynix's own list of what its products compete on leads with pricing, then manufacturing costs, yields and availability, with product performance third1 — so it will receive allocation regardless of whether it wins on merit — the same dynamic that keeps AMD relevant against Nvidia. A supplier everybody wants to exist has a floor under its volume that no product decision can remove.
What it does not confer is pricing power. A second source is valued for existing, not for excelling, and second sources are typically priced against the leader rather than above it.
The number that tests this is Micron's HBM share against SK hynix's. Share gained while both are capacity-constrained is share the buyer allocated; share gained once capacity is abundant would be share won.
Micron's advantage is its address, and the value buyers place on a non-Korean supplier rises with every escalation in the technology dispute rather than falling.
Customers want a non-Korean supplier to exist, and Micron is it. A rising Micron share would show buyers shifting volume to their second source; a stable one, that SK hynix's lead in HBM is holding.
Source: TrendForce DRAM ranking, Q1 2026 ↗- ReportedSK hynix's competitive factors lead with pricing, then manufacturing costs, yields and product availability, with product performance third.SK hynix Inc., Form 424B4 prospectus for its Nasdaq offering (SEC, CIK 2120882) — FY2025 revenue W 97,147bn, cost of sales W 38,456bn, gross profit W 58,691bn, S&A W 5,019bn, R&D W 6,466bn and profit for the year W 42,948bn, against FY2024 revenue W 66,193bn / profit W 19,797bn and FY2023 revenue W 32,766bn / cost of sales W 33,299bn / gross loss W 533bn / loss for the year W 9,138bn; Q1 2026 revenue W 52,576bn, gross profit W 41,679bn, profit W 40,346bn. IDC market shares for Q1 2026: second in DRAM at 29.1%, first in HBM at 56.4%, second in NAND at 18.5%, with the three DRAM producers together above 90% of revenue. DRAM products were 77.1% of total sales in 2025 and 77.3% in Q1 2026; NAND 21.3% and 22.0%. Competitors named: Samsung Electronics, Micron Technology and CXMT in DRAM; Samsung Electronics, Kioxia, Micron Technology and Sandisk in NAND; competitive factors listed as 'pricing; manufacturing costs, yields and product availability; product performance, quality and reliability'. First to develop HBM using TSV packaging, commercialised HBM3E in 2024 and developed HBM4 in 2025; HBM carried a per-gigabyte price premium of more than five times traditional DRAM in 2025. M15X cleanroom opened October 2025 with wafer input from Q1 2026; Yongin construction began February 2025 with the first fab's phase-one cleanroom expected Q1 2027; an advanced packaging plant (P&T7) is under construction in Cheongju and one is planned in Indiana for the second half of 2028. Intel's NAND business cost US$6.6bn in December 2021 plus US$2.2bn in March 2025, operated as Solidigm; NAND mass production is transitioning from 176-layer to 238- and 321-layer technologies. Gartner forecasts DRAM revenue of US$143bn in 2025 rising to US$401bn in 2027, HBM US$33bn to US$86bn and NAND US$68bn to US$341bn. A substantial portion of sales is attributable to a limited number of customers located in the United States and China; the two largest were 14.8% and 12.4% of revenue in Q1 2026 and the largest was 23.9% of revenue in 2025. The offering was 177,900,000 ADSs at US$149.00, each ADS one-tenth of a common share, representing 17,790,000 shares against 712,702,365 outstanding; Baillie Gifford, Coatue and Situational Awareness Partners indicated non-binding interest of up to US$7bn. — FY2023-FY2025 and Q1 2026 · publ. 2026-07-10 · source ↗