SK Hynix (000660.KS)
Published 2026-03-17 • by marketsentiment
Thesis Summary
SK Hynix is positioned to benefit from the AI capex boom due to its DRAM and NAND memory chips. The company's strategic investments in HBM and enterprise SSDs have led to significant revenue growth.
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Detailed Deep Dive
_With this report, we are initiating the first-ever single-company coverage at Market Sentiment. SK Hynix is the largest position in our Advanced Packaging portfolio and is perfectly positioned to capitalize on the AI Capex boom. Let’s dig in:_
Then AI changed everything — models required enormous amounts of memory to operate, and AI-generated images and videos required significant storage. With companies spending hundreds of billions in capex, the demand for DRAM and NAND skyrocketed, far outstripping the available supply. As a result, SKY Hynix’s revenue tripled from $22.8B in 2023 to $66.3B in 2025.
The DRAM segment also contains the highly sought-after high-bandwidth memory _(HBM)._ HBMs are created using advanced pacdeliver significant performance gains in memory speed, without which AI processors would sit idle most of the time waiting for data transmission. Given that HBM has emerged as a critical bottleneck for AI chips, the segment is projected to grow at a robust 40% CAGRover the next three years.
Only five years ago, SK Hynix's NAND segment was widely viewed as a loss-making “secondary” business. The acquisition of Solidigm _(a semiconductor subsidiary)_ for $9B from Intel in 2021 has helped turn around this segment. The company has strategically moved away from the volatile consumer SSD market to prioritize high-margin enterprise SSDs (eSSDs) for AI data centers. This pivot towards specialized, high-capacity storage has further boosted the company’s profitability and overall margins.
Being positioned perfectly during the perfect storm of supply constraints and surging demand meant the stock has quadrupled over the last year, after being flat for the previous 5 years.
Based on our valuation model and industry projections, we believe there is significant upside still left in the stock.