SK Hynix beats Arm on valuation: 5.4x vs 125.0x

Arm and SK Hynix occupy opposite ends of the AI chip supply chain, and the article uses that contrast to frame a growth-versus-value choice. Arm licenses its energy-efficient architectures to chip designers, collecting royalties on hundreds of billions of chips with relatively low overhead, and in the fiscal year ended March 31, 2026, revenue reached $4.9 billion with a net margin of 18.4%. SK Hynix makes the high-bandwidth memory AI servers rely on and runs large fabrication plants; in the fiscal year ended Dec. 31, 2025, revenue hit 97.2 trillion Korean won with a net margin of about 44.2%. The balance sheets diverge too: Arm's current ratio is 6.0x against SK Hynix's 1.9x, while Arm's stock-based compensation equaled 69% of operating cash flow.

The article also flags how each company's strategy is shifting. Arm is moving into fabless data-center CPU production rather than only licensing, while SK Hynix began offering American depositary shares on July 10 and holds more than half the HBM market. Both carry distinct risks: Arm's exposure to China and a small set of licensing customers, and SK Hynix's cyclical memory pricing and competition from Samsung and Micron Technology.

The conclusion that SK Hynix is the better buy rests on its lower forward P/E and P/S ratios relative to Arm, plus its HBM market position and recent business performance. Whether that call holds is likely to depend on the durability of AI memory demand and on how Arm's push into chip production plays out; investors should weigh those variables, and the cyclical nature of memory prices, before acting on the comparison.