SK Hynix Faces a Defining Test at the 100-Day Moving Average as Post-IPO Jitters Collide with HBM4 Promise
Published on 07/14/2026 at 17:56 | Redaktion boerse-global.de
The 100-day moving average has emerged as the critical fault line for SK Hynix. At roughly 1,588,000 won on the Seoul exchange, this technical marker sits only about 17% below Tuesday’s closing price of 1,913,000 won — a level that represented a 3.69% bounce from the previous session’s drubbing. The stock had tumbled more than 6% on Monday as the post-IPO hangover intensified, wiping out a chunk of the gains from a record-breaking Nasdaq debut just days earlier.
That debut on July 10 raised $26.5 billion through the sale of 177.9 million American depositary receipts at $149 each — the largest-ever US initial public offering by a foreign company. The ADRs popped 13% on their first day to close at $168.01, briefly touching $170 before settling. But the enthusiasm evaporated quickly. By Monday the US-listed shares had slid back to $157, and the Seoul-listed stock followed suit, now sitting 35.96% below its 52-week high of 2,987,000 won reached on June 25.
Demand vs. Dilution: The Core Debate
For investors, the central question is whether the artificial intelligence boom can keep absorbing the swelling supply of high-bandwidth memory chips — and the enlarged share count that came with the capital raise. SK Hynix still holds a commanding 62% share of the HBM market as of the second quarter, with revenue share at 57% in the third quarter, and UBS projects it could control 70% of the HBM4 market for Nvidia’s upcoming Rubin platform by 2026. Pricing power remains intact too: reports indicate that HBM3E contract prices for 2026 have been lifted by nearly 20% between Samsung and SK Hynix.
Yet the overhang of the ADR offering is hard to ignore. SK Group Chairman Chey Tae-won has left the door open for further US equity sales, contingent on strong returns and a stable share price. Even the mere possibility keeps the dilution narrative alive, especially given that the proceeds are earmarked for new fabrication capacity — capacity that rivals Samsung and Micron are also racing to build.
Should investors sell immediately? Or is it worth buying SK Hynix?
Bull Case: Export Boom and a Structural Shortage
Proponents of the bull case point to South Korea’s semiconductor export data, which surged 193% year-on-year in the first ten days of July. The government in Seoul has revised its 2026 GDP growth forecast upward to 3.0%, citing the chip sector’s record contributions. SK Hynix itself shows a year-to-date gain of 183.14% on the Seoul bourse, and the relative strength index at 40.7 suggests the stock is neither overbought nor deeply oversold.
Technically, the 100-day moving average — around 1,587,741 won in the primary Korean listing — is seen as the last line of defence for the long-term uptrend. If the stock stabilises there, the path remains open for a recovery toward the 50-day average near 2,165,000 won. Looking further ahead, some analysts forecast a historic memory chip shortage in 2027, which would underpin demand well beyond the current HBM cycle. The ramp to mass production of HBM4, expected in the third quarter of 2026, is seen as the next major catalyst.
Bear Case: Cyclical Fears and a Volatility Red Flag
The sceptics counter with the stock’s extreme swings. The annualised 30-day volatility stands at 123.57%, a level that reflects how quickly sentiment can turn. The recent sell-off was triggered in part by reports in late June of possible production cuts for Nvidia’s Rubin chips and a slower-than-expected HBM4 expansion, which sent the stock down more than 10% in a single session.
Earnings concerns add to the caution. KIS Securities estimates that SK Hynix will report an operating profit of 60.4 trillion won for the second quarter — a record, but below the market consensus of 65 trillion won. The gap suggests that cost pressures and long-term fixed-price contracts may be eating into margins even as volumes grow. Critics argue that the Nasdaq listing itself marked the euphoria peak, and that with the share base now substantially enlarged, any negative news on hyperscaler investment could hit harder than in previous cycles.
SK Hynix at a turning point? This analysis reveals what investors need to know now.
Outlook: Earnings and the Next Catalysts
All eyes are on the second-quarter earnings release, expected around July 22. That report will either confirm that margin normalisation is under way or surprise to the upside if HBM3E and HBM4 pricing proves stronger than feared. In the meantime, comments from SK Group management on potential follow-on ADR sales, along with updates on HBM4 mass-production progress and Nvidia’s Rubin orders, will serve as the next directional cues.
If the stock can defend the 100-day moving average, the long-term bull thesis — anchored by a forecast memory shortage in 2027 and SK Hynix’s leading position in HBM4 — retains credibility. A break below that level, however, would open the door to a retest of the 52-week low, which still sits a vast 335.91% below the current price. For now, the market is caught between a record-breaking IPO and the cyclical tremors that have historically followed chip-sector peaks.
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