South Korean semiconductor manufacturer SK Hynix reported record third-quarter earnings on October 28, 2026, as surging demand for artificial intelligence memory chips pushed quarterly revenue beyond KRW 100 trillion (approximately US$79 billion) for the first time.
Revenue climbed 328% year-on-year to KRW 104.62 trillion, surpassing analyst expectations of KRW 98.23 trillion. Operating profit surged 632% to KRW 83.33 trillion, exceeding the KRW 76.96 trillion consensus reported by FnGuide.
The results helped lift SK Hynix shares as much as 9.4%, reflecting renewed investor confidence in the profitability of AI infrastructure suppliers.
Record Earnings Reveal Extraordinary Profit Margins
SK Hynix's operating margin reached approximately 80%, compared with 47% a year earlier, supported by strong memory-chip pricing and greater sales of premium products.
SK Hynix Q3 2026 Financial Results
Source: SK Hynix, October 28, 2026.
However, net profit declined 58% from the preceding quarter, illustrating the importance of distinguishing recurring operating earnings from other gains and accounting effects.
AI Memory Demand Extends Into 2029
The strongest signal may be the company's future order visibility.
SK Hynix has signed long-term supply agreements with 14 major customers, including global cloud service providers, securing commitments covering more than 50% of its production capacity for 2027 and 2028.
Management also indicated that its DRAM and high-bandwidth memory (HBM) capacity is effectively committed through 2029, including supply under negotiation.
HBM is particularly important for AI accelerators because it enables faster data transfers between processors and memory.
SK Hynix expects its latest HBM4 products to surpass HBM3E in shipments and revenue during the fourth quarter, reinforcing its position in advanced AI memory.
The company also plans substantial capacity expansion during 2027 to meet anticipated demand.
Shareholders Set to Receive KRW 100 Trillion
The chipmaker outlined approximately KRW 100 trillion in shareholder returns during 2026, including at least KRW 30 trillion in dividends and more than KRW 60 trillion in share repurchases and cancellations.
Part of the distribution reflects gains from the company's investment in Japanese semiconductor manufacturer Kioxia.
The announcement demonstrates how the AI memory boom is translating into capital returns, although the unusually large distributions should not be assumed to recur annually.
What It Means for Semiconductor ETF Investors
SK Hynix's record earnings are particularly relevant to investors accessing the global memory-chip industry through exchange-traded funds.
The Roundhill Memory ETF (DRAM) offers concentrated exposure to memory manufacturers, including SK Hynix, Samsung Electronics and Micron Technology. In September, these three companies collectively represented approximately 73% of its portfolio, making the fund particularly sensitive to changes in memory-chip demand and pricing.
For GCC investors, the PLUS Korea Manufacturing Core Alliance ETF (KMCA) is also worth watching. As of October 22, SK Hynix represented 20.69% of the portfolio, while Samsung Electronics accounted for 24.36%. The fund is among two South Korean ETFs approved for potential cross-listing on ADX, subject to final trading arrangements.
Investors seeking broader exposure can also consider the KraneShares Public-Private AI & Technology ETF (AGIX), which trades in Abu Dhabi, or the VanEck Semiconductor ETF (SMH), which provides diversified semiconductor exposure without the same concentration in Korean memory manufacturers.
The results reinforce the importance of tightening memory-chip supply and rising AI infrastructure demand, although investors must still consider valuations, supply expansion and concentration risks.
The key question is whether today's exceptional memory-chip margins can be sustained as manufacturers increase capacity and competition intensifies.
