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Not Micron. Not Sandisk. This Memory Stock Is Quietly Gaining Share.

2026-10-09 15:40 •Leo Sun •The Motley Fool Positive Axe Cap view: Selective •Equities•Earnings•Technology•AI•Semiconductors •SKHY•MU•SNDK•NVDA•WDC

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SK Hynix Quietly Takes the Lead in AI Memory Chips

SK Hynix offers compelling value and growth over U.S. rivals in the high-bandwidth memory (HBM) segment crucial for AI applications.

While the U.S. memory chip giants Micron and Sandisk often grab headlines, SK Hynix is quietly building a dominant position in the HBM market, controlling over half of this niche used heavily in AI and data centers. Trading at about 5 times forward earnings, it looks undervalued given its projected earnings growth of more than 100% a year through 2028. For South African investors, this matters because global demand for AI-capable memory chips influences USD strength and, by extension, the rand. A weaker rand could benefit exporters like some JSE tech-linked stocks. Still, direct exposure to SK Hynix is limited here, so the USD/ZAR rate is your closest yardstick. Risk comes if U.S. companies catch up or geopolitical tensions disrupt supply. But for now, SK Hynix’s mix of valuation, growth, and market share give it an edge. this is just our opinion and not financial advice

How I would invest

Watch USD/ZAR closely for moves driven by chip demand shifts and consider trimming rand-hedged exposure if SK Hynix gains momentum drive a stronger dollar. Avoid South African memory-related stocks as none offer direct plays on this trend.

What I would watch
  • USD/ZAR
  • Naspers
What could go wrong
  • U.S. rivals closing technology gap
  • Geopolitical supply chain disruptions
How strongly I feel

6/10

SK Hynix, South Korea's second-largest memory chipmaker, is emerging as a stronger competitor than Micron and Sandisk in the AI-driven memory chip market. With over 50% of the HBM market share and a valuation of just 5x forward earnings, SK Hynix offers better value and growth potential (107% EPS CAGR through 2028) compared to its U.S. rivals.

Our take is based on reporting first published by The Motley Fool.

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