CompetitorsNarrow moat
SK hynix (SKHY) — moat facet
In memory nobody wins by taking a customer, because the buyer qualifies all three and splits the order -- so rivals compete for allocation, which is the only thing here that was ever available to take.
Memory is the rare industry where competition happens without anybody switching.
A large buyer of DRAM does not choose a supplier. It qualifies all three, splits the order, and adjusts the split each cycle according to price, availability and how badly it needs a second source. Nobody is won and nobody is lost. Share moves because a purchasing decision moved, not because a relationship broke — which is why the competitive questions that matter here are about price, yield and capacity, and why a salesman is worth very little.
That structure explains the strange shape of SK hynix's position. It is second in DRAM at 29.1% of revenue and second in NAND at 18.5%1 — second in both of its markets, and yet in the segment that produces the profit it has been first for years. Being second in a three-player industry is not the same as being second in a normal one. The three together take more than 90% of DRAM revenue2, and each of them is indispensable to buyers who cannot afford a single point of failure.
The four rivals here are four different problems. Samsung is larger in both markets and arrived late to the one that mattered. Micron competes less on merit than on nationality, because its customers want a supplier outside Korea. CXMT is not competing for these customers at all — it is building an industry China intends to buy from instead. And TSMC is not a rival, which is the point: it is the partner that lets SK hynix answer Samsung's vertical integration without owning a foundry.
The honest summary is that no competitor has taken a customer from SK hynix, and none is likely to. They will take allocation, which is the only thing here that was ever available to take.
The competitive position deteriorated on the disclosed numbers while the results improved — DRAM share from 34.8% to 29.1% in a quarter — and the newest participant is a state-funded one that does not need the investment to earn a return.
Rivals gain on SK hynix through supply allocation rather than by taking accounts. Samsung widening the gap in conventional DRAM, where prices rose fastest, is what that looks like; the gap narrowing would show SK hynix winning allocation back.
Source: TrendForce DRAM ranking, Q1 2026 ↗- Third-party estimateSecond in DRAM at 29.1% of revenue and second in NAND at 18.5% in the first quarter of 2026.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 ↗
- Third-party estimateThe three DRAM producers together take more than 90% of revenue.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 ↗
- SK hynix Form 424B4 prospectus for the Nasdaq offering (SEC EDGAR)
- SK hynix — semi-annual business report to 30 June 2026 (SEC Form 6-K)