Barclays has thrown its weight behind SK Hynix, lifting its price target to €2,900 — a level that implies roughly 90 per cent upside from the memory chipmaker’s recent trading around 2.6 million South Korean won. The optimism is rooted in sustained pricing power for high-performance memory, bolstered by strong quarterly results from rival Micron. Yet even as analysts cheer, a freshly filed US antitrust lawsuit threatens to cloud the narrative, and questions around how quickly HBM4E samples can morph into real revenue remain unresolved.
The stock has already priced in much of the AI memory story. It closed near 2,650,000 KRW, a gain of 291 per cent since the start of the year and a level 34 per cent above its 50-day moving average of 1,971,760 KRW. That rally has been driven largely by expectations around next-generation high-bandwidth memory, but the company has yet to convert its HBM4E samples into certified volume orders. The customer validation process is still underway, and mass production lies ahead.
The bull case rests on execution
SK Hynix confirmed in June that it had delivered HBM4E samples to key customers — a technical milestone, but one that still leaves the commercial ramp uncertain. The bullish argument draws on a deeper structural shift. The company has a multi-year technology partnership with Nvidia, announced in the same month, locking it into the AI accelerator supply chain beyond the commodity memory cycle. At the International Supercomputing Conference, Lenovo described the memory economics as fundamentally altered, with AI infrastructure absorbing future capacity additions and keeping DRAM prices above historic troughs.
The share price reflects that conviction. Over the past seven trading days, SK Hynix has added 3.7 per cent, and over the past 30 days, 12 per cent. The 52-week high of 2,987,000 KRW, set on June 25, is now just 11 per cent away. The relative strength index stands at 58.8, leaving room for further upside — provided the validation phase delivers.
Skepticism has multiple roots
The counter-arguments are mounting. First, a cartel lawsuit filed in late June in a US district court in California accuses SK Hynix, Samsung and Micron of conspiring to artificially restrict DRAM supply, pushing prices up by roughly 700 per cent over four years. The plaintiffs are seeking class-action status and triple damages. Micron has already denied the allegations.
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Second, the path from sample to volume is not guaranteed. SK Hynix itself says it is “working toward” mass production with partners. Meanwhile, media reports, citing industry sources, suggest the company has slowed its HBM4 expansion and shifted some capacity toward conventional DRAM amid acute shortages there. If true, that could signal management is prioritising near-term margin in the commoditised market over the premium HBM narrative.
Third, competition is tightening. Nvidia is reportedly planning to qualify multiple memory suppliers for its next AI platform, rather than relying exclusively on SK Hynix. That would not push the Korean chipmaker out of the race, but it would compress the premium the market has awarded it for perceived uncontested leadership.
A colossal investment plan adds uncertainty
South Korea is pushing for an investment of roughly $518 billion in new chip fabrication facilities, with SK Hynix and Samsung as the main vehicles. SK Group chairman Chey Tae-won, however, has urged caution, asking for more time to secure the necessary power and water infrastructure before committing to new sites. The risk of overcapacity is real, and some analysts have already warned that such a massive buildout could destabilise pricing.
The stock’s annualised 30-day volatility of 105 per cent underscores the market’s jitters. Any disappointment on the HBM4E commercialisation timeline, or a clearer signal that capacity is being diverted to conventional DRAM, could trigger a swift re-rating. The technical anchor to watch in that scenario is the 50-day moving average; a sustained break below that level would suggest the market is no longer pricing in the HBM4E option as aggressively.
For now, the ball is in management’s court. The next concrete catalyst is an official update on customer validation progress and the mass-production timetable. Until then, the bull case depends on turning samples into volume, and the bear case needs only the gap between the two to remain visible.
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