SK Hynix

Stock performance

History

SK Hynix began as Hyundai Electronics, founded during South Korea's push to build a domestic semiconductor industry in the 1980s, and went through a difficult restructuring in the early 2000s — including a period under creditor-bank control — before the SK Group, one of South Korea's largest conglomerates, acquired a controlling stake in 2012 and renamed it SK Hynix. Under SK's ownership the company invested heavily to close the technology gap with Samsung in memory chips and, more recently, positioned itself as a leading supplier of the specialized high-bandwidth memory chips used in AI systems.

Business model

SK Hynix designs and manufactures memory chips — primarily DRAM and NAND flash — sold to computer, smartphone, and server manufacturers worldwide, with an increasing focus on high-bandwidth memory products used alongside AI processors like Nvidia's GPUs. Its business is capital-intensive and historically cyclical, tracking swings in global electronics demand, though the AI boom has driven unusually strong and sustained demand for its most advanced memory products.

Market position

SK Hynix is the second-largest memory-chip maker in the world after Samsung Electronics, and has emerged as a leading supplier of high-bandwidth memory chips critical to AI data-center hardware, a niche where it has at times held a technology lead even over larger rival Samsung. It competes with Samsung and US-based Micron across the broader memory-chip market.

Country impact

SK Hynix is one of the largest companies in South Korea and, alongside Samsung, a pillar of the country's semiconductor export industry, which is one of the largest single contributors to South Korean GDP and trade. Its success in AI-related memory chips has made it a significant beneficiary of the global AI infrastructure buildout and a closely watched indicator of South Korean tech-sector health.