SK Hynix Orders, October 2026: DRAM and HBM Booked Through 2029 as Profit Soars to $62 Billion
SK Hynix shares surged 10.9% to 1,487,000 won in the October 27 session — with no single published catalyst identified — against a backdrop of company disclosures showing HBM customer demand running at more than double available supply and order books reportedly filled through 2029.
SK Hynix shares closed up 10.9% at 1,487,000 won in the October 27 session — a striking reversal in a month that had already seen the stock fall as much as 11% in a single day (which one report attributed to a convergence of an inflation shock, Solidigm IPO uncertainty, and the CXMT competitive threat), a separate decline of around 4% when CXMT rattled memory bulls, and a further 2.8% drop on another occasion. No published report has attributed the October 27 rebound to a specific catalyst, but it arrived against a backdrop of operational disclosures that are difficult to characterise as anything other than constructive for the memory-supply thesis.
The most consequential of those disclosures is SK Hynix's own statement that customer demand for high-bandwidth memory (HBM) currently exceeds what the company can supply by more than two to one, and that its order books for both DRAM and HBM are filled through 2029 — a forward visibility horizon that would have been unimaginable in past memory cycles. Korea JoongAng Daily, citing company figures, reported that profit has soared to $62 billion. Separately, Seeking Alpha flagged the possibility that AI memory prices could more than double again in 2027. Elon Musk's public complaint about "extortionate" memory pricing, reported this month, functions as a blunt validation of the pricing power the top suppliers now command. One ranking published in October estimated that SK Hynix's 2025 chip revenue had surpassed Intel's — a structural milestone in an industry whose centre of gravity has shifted unmistakably toward memory.
The immediate engine of that re-rating is HBM4. Multiple reports confirm that SK Hynix has commenced mass production of 16-layer HBM4 for NVIDIA's Vera Rubin platform, and one report states that the company reportedly accounts for 65-70% of HBM4 volumes across the three qualified suppliers — SK Hynix, Samsung, and Micron — with Micron said to have sent samples. The AI infrastructure supply chain has accordingly stratified: 24/7 Wall St. reported that SK Hynix has allocated its HBM output largely to Tier-1 customers, with spillover demand absorbed by Micron. Samsung, which has also been advancing its own 16-layer HBM4 (48GB) production, is now reportedly poised to capture close to 40% of HBM revenue in the fourth quarter for the first time, according to bloomingbit — a narrowing of the gap that reshapes the competitive calculus for AI platform procurement teams.
Against this constructive picture, four risk vectors stand out. First, TechPowerUp reported that SK Hynix has encountered difficulties in HBM hybrid bonding — the process expected to underpin next-generation stacking — and is described as trailing Samsung in that capability. Second, CXMT's arrival as a publicly listed entity (its shares reportedly surged 531% on debut) and its stated plan to launch 4F² server DRAM this year proved a recurring shock to memory-sector sentiment throughout October; one analysis described Samsung and SK Hynix as unsettled by CXMT's 4F² bet, though Micron is said to have declined to pursue the same architecture. The competitive threat from CXMT should be calibrated against execution risk: 27 veterans from Samsung and SK Hynix have reportedly left CXMT after an average tenure of roughly 2.9 years, suggesting challenges in sustaining the institutional knowledge required for cutting-edge yield improvement. Third, Solidigm — the NAND unit SK Hynix acquired from Intel — abandoned its IPO and confirmed plans to build a 3D NAND fab in the United States; one report put the proposed investment at $45 billion, and according to TechCrunch and other outlets, SK Hynix has reportedly linked the US fab commitment to a demand for export licences covering its existing plant in Dalian, China, placing the company at the centre of US-China export-control negotiations. Fourth, IBK and Bernstein have diverged publicly on HBM pricing durability, and customer pressure on pricing — crystallised by Musk's comments — remains a live variable.
Looking beyond the current HBM supercycle, SK Hynix has outlined what it describes as successor technologies: MARS, which the company says can deliver up to a five-fold speed increase, and HBF (High-Bandwidth Flash), with capacity it claims reaches 14 times that of HBM. Whether these transitions can be commercially validated before the current pricing regime is challenged by Samsung's improving position, CXMT's evolving product roadmap, or intensifying customer pressure remains an open question. Three signals warrant close monitoring: confirmation or otherwise of Samsung's Q4 HBM revenue share near 40%, which will indicate whether SK Hynix's Tier-1 lock-in is as durable as the order-book figures imply; the outcome of the Solidigm US-China equipment-export negotiation, which will set a precedent for how Washington and allied chipmakers manage competing strategic interests; and SK Hynix's hybrid-bonding yield progress, which will determine whether the company can sustain its leading-edge position into the 16-layer HBM generation and beyond.