SK Hynix at a Crossroads as HBM4 Rivalry With Samsung Heats Up
Published on 07/18/2026 at 07:02 | Redaktion boerse-global.de
The euphoria surrounding SK Hynix’s landmark Nasdaq listing on July 10, which raised roughly $26.5 billion in one of the biggest foreign debuts in US history, has given way to a brutal reality check. By Friday, the stock had shed 11.53% in a single session to close at 1,842,000 won in Seoul, pushing the 30-day decline to nearly 27% and triggering a trading halt on the Kospi on Wednesday after a 15% plunge. Yet for all the anguish, the shares remain up 183.52% year-to-date — a stark reminder that the sell-off, however violent, has come after a meteoric rise that saw the stock more than quadruple from its October 2025 trough.
The core question dividing investors is no longer whether AI-driven demand for high-bandwidth memory will endure, but whether SK Hynix can defend its pole position as the transition from HBM3E to HBM4 accelerates. Samsung has already started commercial HBM4 production and shipment, and while SK Hynix has matched that timeline with its own mass production, the competitive dynamics are shifting fast.
The Bullish Thesis: A Structural Shortage That Spans Years
Proponents of the long-term story point to a supply-demand imbalance that, according to CEO Kwak Noh-jung, will reach its most acute phase in 2027 and persist well past 2030, powered by relentless global AI infrastructure buildout. SK Hynix controlled 56% to 58% of the HBM market in the first quarter, down from 62% in Q2 2025, but management insists that customer demand already exceeds planned capacity for years ahead. The company shipped 12-layer HBM4E samples to key clients in June and deepened its partnership with Nvidia through a technology collaboration agreement that ties future memory solutions directly to Nvidia’s AI roadmap.
Analyst sentiment remains constructive. Bank of America has named SK Hynix its “top pick” in the global memory space and projects a $54.6 billion HBM market in 2026, representing 58% year-over-year growth. KB Securities raised its price target to 4.2 million won on July 2 from 3.8 million won, a roughly 10% increase. SK Group Chairman Chey Tae-won has publicly urged shareholders to hold the stock for the long term, citing persistent demand throughout the AI era.
Should investors sell immediately? Or is it worth buying SK Hynix?
The Bear Case: Samsung Closes the Gap
Samsung’s advance is no longer a distant threat. The company says its HBM sales could more than triple in 2026 versus the prior year, and it claims an “early leadership position in the HBM4 market.” Each percentage point of market share that Samsung and Micron capture puts downward pressure on SK Hynix’s pricing power, and the trajectory is already visible: SK Hynix’s share has slipped four to six percentage points in under a year.
A more subtle risk lies in wafer allocation. Since early 2026, DDR5 chips have generated higher profit per wafer than HBM, incentivizing manufacturers to shift capacity toward standard DRAM. That move pads margins in the short term but signals that HBM margins may be under pressure. Meanwhile, Chinese competitor CXMT is adding further capacity to the DRAM market, intensifying competition across the board.
The market’s sensitivity to any whiff of demand softening was on full display June 23, when SK Hynix shares tumbled 12.5% on reports that Nvidia might reduce its Rubin production plans and that SK Hynix could slow its HBM4 capacity expansion. While neither report was confirmed, the reaction showed how quickly sentiment can sour. Seeking Alpha summed up the mood with a neutral assessment: standard DRAM looks attractive for 2026 but may peak by 2027, when HBM should reclaim the spotlight — provided SK Hynix can hold its lead.
SK Hynix at a turning point? This analysis reveals what investors need to know now.
What to Watch
The next major catalyst arrives July 29, when SK Hynix reports second-quarter results. Investors will scrutinize HBM market share trends, the company’s updated pricing outlook, and any concrete milestones on HBM4 yield and capacity. Samsung’s own HBM4 production ramp will serve as the other key variable. If the structural shortage narrative holds, SK Hynix has a strong case for recovery from current levels — its 50-day moving average sits 15.86% above Friday’s close, and the RSI of 40.5 suggests selling pressure may be easing. But if Samsung’s threefold HBM revenue ambition materializes faster than anticipated, the sell-off might prove to be only the opening act of a longer consolidation.
Ad
SK Hynix Stock: New Analysis - 18 July
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.
