SK Hynix’s Capacity Realignment and 15% Plunge Cast Doubt on HBM4 Dominance After Record Nasdaq Listing
Published on 07/13/2026 at 11:12 | Redaktion boerse-global.de
The euphoria surrounding SK Hynix’s landmark Nasdaq debut lasted barely a weekend. On Monday, the South Korean memory-chip giant saw its stock crater 15.37% in Seoul, closing at 1,845,000 won, as investors who had cheered the company’s record-breaking American Depositary Receipt listing three days earlier rushed to cash out. The sell-off deepened the decline from the all-time high of 2,987,000 won set on June 25 to 38.23%, turning a celebrated cross-border capital raise into a jarring home-market correction.
That raise had been nothing short of historic. On Friday, SK Hynix priced its ADRs at $149 each on the Nasdaq, with demand exceeding supply by more than seven times. The shares opened at $170 and finished the first session up 12.8%, netting the company roughly $26.5 billion in fresh capital – one of the largest equity placements by a foreign issuer on U.S. soil. The proceeds were earmarked for new factories and fabrication equipment to feed insatiable demand for high-bandwidth memory used in artificial intelligence processors.
But the enthusiasm in New York quickly gave way to a reality check on home turf. Monday’s rout was fueled in part by nervous anticipation of the upcoming second-quarter earnings report. Analysts now expect operating profit to undershoot consensus by as much as 8%, with the culprit being a slower-than-expected ramp-up of HBM4 chips – the next-generation memory that underpins SK Hynix’s entire growth narrative. The stock has shed 21.25% over the past week alone, a pace that underscores how swiftly sentiment can reverse in a name that has tripled in value since January.
Should investors sell immediately? Or is it worth buying SK Hynix?
Compounding the uncertainty, reports from late June indicate that SK Hynix has shifted some planned HBM4 production capacity back to conventional DDR5 memory. The move appears tactical: acute supply shortages for legacy DDR5 chips currently offer margins as high as 90%, making it tempting to divert resources from the more complex, lower-yield HBM4 lines. While that strategy bolsters near-term profitability, it risks ceding ground to rivals Samsung and Micron during the transition to the HBM4 architecture. SK Hynix currently controls 58% of the high-bandwidth memory market, a lead it can ill afford to erode.
The bull case still rests on the company’s deep relationship with Nvidia. A multi-year technology partnership announced on June 7 positions SK Hynix as the primary supplier for Nvidia’s forthcoming “Vera Rubin” platform, with mass production of HBM4 slated for the second half of 2026. Industry reports suggest HBM4 prices could nearly double to $5 per gigabit by 2027, driven by extreme fabrication complexity and low initial yields. Yet skeptics warn that after a 172.53% year-to-date gain, the stock has entered a “valuation air pocket”. The tactical shift to DDR5 may signal that the HBM4 ramp is progressing more slowly than management had hoped, giving competitors a window to catch up.
From a technical perspective, the stock is now flirting with oversold territory. The relative strength index has fallen to 38.5, while annualized volatility has surged to nearly 123% – extreme even by semiconductor standards. The share price sits 14.31% below its 50-day moving average of 2,153,120 won, confirming that the short-term trend has turned decisively lower. Should the sell-off persist, the 100-day moving average at 1,576,760 won would become the next major support level, representing a potential further decline of roughly 15% from current levels.
Looking ahead, the next critical catalyst will come toward the close of the third quarter, when finalised HBM4 yield data from joint testing with Nvidia is expected. If the results hit internal targets, the thesis of a historic memory supply crunch in 2027 will regain momentum, potentially driving the stock back toward the June highs. If not, the current correction could deepen as the market reassesses whether SK Hynix’s $26.5 billion Nasdaq windfall – and the rich valuation that accompanied it – was a conviction bet on the AI future or a temporary peak in the chip cycle.
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