SK Hynix Pitches HBM4E and a Post-HBM Roadmap While Shrugging Off a Brutal Week

SK Hynix used the SEDEX industry showcase on Wednesday to roll out its newest high-performance memory, the HBM4E, a part that reportedly hits peak transfer speeds of 16 gigabits per second while drawing more than 20 percent less power than its HBM4 predecessor. The Korean chipmaker rounded out the display with high-bandwidth flash products and a set of companion AI memory solutions.

The unveiling lands in the middle of a rough stretch for the stock. On Thursday, shares of SK Hynix tumbled 11.06 percent, with the benchmark KOSPI shedding 7.57 percent alongside it. Reuters tied the chip-sector selloff to stubborn US inflation that revived rate-hike expectations, compounded by mounting doubts about the AI capital-spending boom after losses on Wall Street.

By Friday the equity had steadied, trading 0.8 percent higher at 1,272,000.00 KRW. That leaves the stock up 96 percent year to date, even after a week in which it lost as much as 24 percent of its value.

A Roadmap That Reaches Past HBM

Management is already preparing for a data-center landscape that looks nothing like today's. Chief Development Officer Ahn Hyun argued that HBM alone will not be enough to hold the company's lead in AI memory, projecting that global AI infrastructure could expand nearly twentyfold by 2030 compared with 2026.

To meet that demand, SK Hynix is pushing alternative architectures: 3D-stacked DRAM, high-bandwidth flash, and memory pooling built on the CXL standard. Such systems are meant to lift data throughput in data centers and ease the bottlenecks that slow complex model computations.

China's CXMT Turns Up the Heat

Competitive pressure is building from a different direction. Chinese manufacturer ChangXin Memory Technologies (CXMT) announced progress on its 4F² DRAM cell design on October 10, and plans to bring DDR5 server products built on that technology to market by year-end. Questions about yield and customer certification remain unanswered, but the announcement still stoked fears among market participants about future oversupply — and sharpened competition worries for established server-DRAM players like SK Hynix.

Geopolitics adds another layer. The company has asked US authorities for permission to install additional US-made chipmaking equipment at its Dalian plant in China, a request tied to plans by its US subsidiary Solidigm to build a NAND fab on American soil. According to Reuters, the license is still pending, while SK Hynix said equipment installation is proceeding in coordination with and under authorization from the US government.

Musk Takes Aim at Memory Pricing

Attention also turned to Elon Musk, who publicly branded memory chip pricing as extortionate. His remarks, per media reports, were aimed squarely at Samsung Electronics and SK Hynix, while he singled out US rival Micron for praise.

Analysts Keep the Faith Ahead of Earnings

The analyst community remains supportive. Kim Sun-woo of Meritz Securities reaffirmed his buy rating on October 12 and raised his price target to ?3.2 million. The brokerage forecasts an operating profit of ?80.1 trillion for the third quarter of 2026, a projection that sits above the broader market consensus.

Investors will get a clearer read on the past few months soon: the company said its earnings call for the third quarter of 2026 will take place on October 28 at 9:00 a.m. Seoul time. The key question is how far demand for advanced server modules can offset headwinds in standard DRAM.