SK Hynix stock (KR7000660001): Shares drop 1.50% to 262,000 KRW amid volatility

SK Hynix Inc shares fell 1.50% on July 28, 2025, closing at 262,000 KRW after fluctuating 2.71% during the session, according to recent market data.

SK Hynix Inc stock declined 1.50% on Monday, July 28, 2025, closing at 262,000 KRW from 266,000 KRW, with intraday trading ranging from a low of 258,500 KRW to a high of 265,500 KRW, representing volatility of 2.71%, stockinvest.us as of July 28, 2025.

As of: 14.05.2026

By the editorial team – specialized in equity coverage.

At a glance

• Name: SK Hynix Inc
• Sector/industry: Semiconductors
• Headquarters/country: South Korea
• Core markets: Global memory chips
• Key revenue drivers: DRAM, NAND flash
• Home exchange/listing venue: Korea Exchange (000660)
• Trading currency: KRW

SK Hynix: core business model

SK Hynix Inc is a leading global semiconductor supplier specializing in dynamic random-access memory (DRAM) and NAND flash memory products. The company designs, develops, and manufactures memory chips used in computing devices, mobile phones, servers, and data centers worldwide. Headquartered in South Korea, SK Hynix operates fabrication facilities primarily in its home country and China, serving major clients including PC makers and smartphone vendors. This positions it as a key player in the memory chip market, which is critical for the tech supply chain.

Revenue is driven by cyclical demand for memory in consumer electronics and enterprise storage. SK Hynix competes with peers like Samsung Electronics and Micron Technology, focusing on high-density DRAM for AI servers and high-bandwidth memory (HBM) for advanced computing. US investors track SK Hynix due to its exposure to American tech giants like Nvidia and Apple, which rely on its chips for GPUs and devices.

Main revenue and product drivers for SK Hynix

DRAM accounts for the majority of SK Hynix's sales, with products like DDR4, DDR5, and HBM catering to server, PC, and graphics applications. NAND flash, used in SSDs and mobile storage, forms the second pillar. Recent market data shows elevated valuations, with Morningstar reporting a price/earnings ratio of 34.48 and return on assets at 29.08% as of recent quotes, Morningstar as of May 2026. Growth in AI and data centers boosts demand for HBM, a high-margin product.

For US investors, SK Hynix's role in supplying memory for Nvidia's AI chips provides indirect exposure to the booming US AI sector. Trading on the Korea Exchange under ticker 000660, the stock's performance influences ADRs and ETFs popular among American portfolios.

Industry trends and competitive position

The semiconductor memory market faces cycles of oversupply and shortages, with AI driving a current upcycle. SK Hynix holds a top-three position globally in DRAM alongside Samsung and Micron. Investments in advanced nodes like 1b/1z DRAM and HBM3E position it for growth in high-performance computing. US export controls on advanced chips to China impact supply chains, but SK Hynix's focus on non-restricted memory mitigates some risks.

Why SK Hynix matters for US investors

SK Hynix supplies critical memory to US-based hyperscalers like Amazon Web Services and Microsoft Azure, tying its fortunes to American cloud spending. Its HBM dominance benefits from Nvidia's GPU demand, a key US AI leader. Listed via OTC in the US, the stock offers retail investors access to Korea's tech boom without direct foreign exchange hurdles.

Conclusion

SK Hynix Inc continues to navigate memory market volatility, as seen in the recent 1.50% share price drop on July 28, 2025. Strong fundamentals in DRAM and HBM support its competitive edge amid AI demand, while technical signals suggest potential upside. US investors monitor its ties to American tech for portfolio diversification. Market conditions remain dynamic with ongoing industry shifts.

Disclaimer: This article does not constitute investment advice. Stocks are volatile financial instruments.