SK Hynix’s iHBM Slashes Thermal Resistance by 30% as Analysts Forecast Supply Deficits Through 2028
Published on 05/28/2026 at 15:54 | Redaktion boerse-global.de
SK Hynix has a problem that most chipmakers would envy: demand for its high-bandwidth memory is so fierce that the company can barely keep up. But inside the server racks, another kind of heat is building. The South Korean memory giant is fighting both fires at once, unveiling an embedded cooling architecture called iHBM that cuts thermal resistance by a third, even as its stock has surged 238% year to date to a fresh 52-week high of 2.29 million won.
The iHBM solution places non-conductive silicon cooling elements directly in the die-to-die physical layer — the hotspot where HBM stacks meet AI accelerators. By intercepting heat before it radiates through the entire package, SK Hynix says it can reduce thermal resistance by 30% and keep performance stable under heavy load. Crucially, the technology works with existing system-in-package designs, meaning customers like Nvidia do not have to re-engineer their setups. Production relies on SK Hynix’s established wafer-level packaging process using mass reflow molded underfill — a proven technique, not a laboratory experiment.
The timing of the cooling innovation coincides with a dramatic reassessment of the memory market. Mirae Asset Securities analyst Kim Young-gun lifted his price target on SK Hynix from 3.2 million to 3.8 million won, an 18.8% increase, arguing that demand for DRAM, NAND and HBM could outstrip supply through 2028. He expects DRAM average selling prices to climb 184% this year and NAND prices to rise 231% — figures that go far beyond normal cyclical swings. The same logic prompted Mirae to boost its Samsung Electronics target by 14.6% to 550,000 won.
Should investors sell immediately? Or is it worth buying SK Hynix?
The supply crunch is concentrated in AI data centers, which are swallowing ever-larger quantities of premium memory, while legacy markets such as smartphones, laptops and automotive jostle for leftover capacity. SK Hynix management itself has signaled that chip demand will outrun supply for the next three years, with HBM at the center of the imbalance. Memory chip prices already doubled in the first quarter versus the prior period, and another increase of up to 63% is expected in the current quarter, according to secondary source data cited by analysts.
The stock’s response has been electric. On Wednesday it closed 9.3% higher at 2,243,000 won, touching an intraday gain of 14.9% that briefly pushed the market capitalisation past $1.12 trillion. By Thursday it had edged to a new 52-week high of 2,258,000 won before the iHBM announcement carried it to 2.29 million won. The monthly gain stands at 73.69%, and the shares trade roughly 70% above their 50-day moving average, with a relative strength index of 68.9 — a level that signals powerful momentum but leaves little room for disappointment.
Fresh capital flows are adding fuel. In the United States, a new exchange-traded fund with exposure to SK Hynix and Samsung attracted heavy retail inflows, while debut leveraged single-stock ETFs in South Korea posted double-digit gains. Financial investors bought a net 1.3 trillion won of shares on the Korean exchange, even as foreign investors sold. For SK Hynix, the next inflection point will be whether memory prices sustain their upward trajectory. If the supply deficit holds through the coming cycle, the elevated targets will look justified. If pricing pressure eases, a stock that has already priced in years of future growth will face a harsh reckoning.
Ad
SK Hynix Stock: New Analysis - 28 May
Fresh SK Hynix information released. What's the impact for investors? Our latest independent report examines recent figures and market trends.
Disclaimer regarding our articles: No investment advice, no buy or sell recommendation. Information on prices, companies, and markets is provided without guarantee; changes are possible at any time. Stock market transactions can lead to substantial losses. Our articles are created and reviewed in whole or in part automatically with the support of AI.
