SK Hynix’s 4.86% Rally Masks a Volatile Landscape as $26.5 Billion US Listing and Alphabet’s CapEx Surge Reshape the Narrative
Published on 07/24/2026 at 08:12 | Redaktion boerse-global.de
SK Hynix shares staged a sharp recovery on Thursday, climbing 4.86 percent to close at 1,919,000 Won in Seoul, but the respite proved short-lived. By Friday, the stock had surrendered 3.60 percent as the broader KOSPI index slid 2.96 percent to 6,886.56 points, dragged down by escalating Middle East tensions after reports that the Trump administration is weighing military action against Iran while Houthi rebels continue to disrupt Red Sea shipping routes.
The whipsaw action underscores the extreme volatility that has come to define the memory chipmaker’s recent trading. On a seven-day basis, the stock still shows a 4.18 percent gain, and year-to-date it has surged an eye-popping 195.37 percent. Yet the shares remain 35.75 percent below their 52-week high of 2,987,000 Won set on June 25, 2026, and trail their 50-day moving average of roughly 2.2 million Won by 12.77 percent. The annualized volatility reading of 116.07 percent tells the story of a stock that investors cannot seem to stop trading — or worrying about.
Alphabet’s CapEx Bombshell Ignites the Rally
The catalyst for Thursday’s bounce came not from Seoul but from Mountain View, California. Alphabet raised its 2026 capital expenditure forecast to between $195 billion and $205 billion, up from a prior range of $180 billion to $190 billion, citing demand for AI computing power that continues to outstrip supply. Google Cloud’s quarterly revenue jumped 82 percent to $24.8 billion, reinforcing the message that hyperscalers are in no mood to slow their infrastructure buildout.
For SK Hynix, which controls an estimated 58 percent of the market for high-bandwidth memory (HBM) chips — the specialized DRAM that powers Nvidia’s AI accelerators — the spending spree is a direct tailwind. American depositary receipts (ADRs) listed in New York surged between 4.5 percent and 6.7 percent in pre-market and regular trading, and Morgan Stanley noted in a client briefing that the shortage of memory chips and compute capacity remains acute, with the AI infrastructure cycle still in its early innings.
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The ADRs themselves have been trading at a premium of roughly 34.5 percent to the Seoul-listed common shares, a gap driven by the 2.5 percent conversion cap that has limited arbitrage. The July 10 IPO, which raised $26.5 billion and was seven times oversubscribed, stands as the largest foreign listing in US history.
A $4.8 Billion Bet on Cheongju and the Road to HBM4
Behind the daily price swings, SK Hynix is laying the groundwork for the next phase of HBM production. The board has approved 7.09 trillion Won (approximately $4.83 billion) for a new packaging facility dubbed P&T7 in Cheongju, part of a broader 19 trillion Won expansion plan. The clean-room construction schedule has been accelerated to keep pace with surging AI memory demand, and the new plant will be integrated with the adjacent M15X facility to form a dedicated production hub.
The facility is critical for HBM4, the next-generation memory standard that SK Hynix plans to begin shipping to partners including Nvidia from late 2025 through 2026. The company is also investing roughly $4 billion in a new packaging plant in Indiana, underscoring its strategy to build capacity both at home and abroad.
The Morgan Stanley Snub and a $1.3 Billion Miss
While the market focused on the rally, a quieter drama played out in the underwriting syndicate for SK Hynix’s US listing. Morgan Stanley was conspicuously absent from the lead banks, with Bank of America, Citigroup, Goldman Sachs, and JPMorgan Chase taking the top roles. Industry observers link the exclusion to the bank’s past bearish calls on memory, including a widely circulated report titled “Memory, Winter is Coming” that warned of a DRAM demand downturn. The snub cost Morgan Stanley an estimated $1.3 billion in underwriting fees — a tangible penalty for a forecasting miss.
Margin Calls and a Nation of Retail Investors
The sharp sell-off that preceded this week’s bounce had a distinctly Korean flavor. SK Hynix lost more than 20 percent in two trading days in July as a wave of margin calls swept through South Korea’s retail-heavy market. Roughly 12 million individual investors — more than 3 percent of the adult population — received margin calls as the country’s credit-financed stock positions, which hit a record 1.42 trillion Won in May, were forcibly unwound.
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The fundamental picture, however, remains robust. In the first quarter of 2026, SK Hynix reported revenue of 52.6 trillion Won, nearly triple the prior year, with an operating margin of 72 percent and net profit up 398 percent. Counterpoint data confirms the company’s 58 percent HBM market share, and management expects demand to outstrip supply for at least three more years. Nomura projects data-center investment will grow roughly 48 percent annually through 2030.
A CEO’s Caution and the July 29 Earnings Test
Not everyone inside the SK Group is cheering the current pricing environment. Group Chairman Chey Tae-won described memory chip prices as “unusually high” at the Jeju Forum, warning that a prolonged shortage could trigger geopolitical friction. He noted that some customers are already requesting 60 to 100 percent more AI memory for 2027 than is currently available, raising the question of whether production capacity can keep pace.
CEO Kwak Noh-jung has warned that supply constraints could persist through 2030, a timeline that puts enormous pressure on the company’s expansion plans. All eyes now turn to July 29, when SK Hynix reports second-quarter earnings. The analyst consensus calls for earnings per share of 71,211 Won, up 3.6 percent from the prior-month estimate. Investors will be watching for updates on HBM4 development, the trajectory of capital spending, and any signs that the supply-demand imbalance is beginning to ease — or, as Chey’s comments suggest, intensifying further.
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