SK Hynix’s Valuation Breakthrough: How AI Memory Supremacy Drove a P/ E Crossover with Samsung

For years, SK Hynix traded at a discount to its larger rival Samsung Electronics, priced by the market as just another cyclical memory player. That narrative has been decisively shattered. The South Korean chipmaker’s forward price-to-earnings ratio for 2026 now stands at 6.79, squeaking past Samsung’s 6.77 for the first time. The shift marks a fundamental re-rating: investors no longer view SK Hynix as a commodity DRAM supplier, but as a bottleneck asset in the artificial intelligence supply chain.

The stock closed at a record 1,976,000 won on Wednesday, surging 7.68% in a single session and bringing its year-to-date gain to nearly 192%. Even allowing for a blistering 76% advance over the past month alone, the momentum shows no sign of abating. Analysts have scrambled to lift their price targets. KB Securities raised its target by 40% to 2.8 million won, with analyst Kim Dong-won pointing to explosive demand for high-bandwidth memory in AI servers and a sharp acceleration in memory prices. LS Securities followed with a target of 2.1 million won, while SK Securities sees the stock hitting 3 million won, citing technological leadership and stronger earnings visibility. Mirae Asset Securities, which forecasts a full-year operating margin of 62%, holds to 2.7 million won, underpinned by elevated DRAM contract prices and long-term supply agreements with hyperscalers.

A critical catalyst behind the rally is SK Hynix’s pivot to alternative chip packaging. The company is jointly testing Intel’s EMIB 2.5D packaging technology as a potential substitute for TSMC’s dominant CoWoS process. TSMC has been grappling with severe capacity bottlenecks, forcing tech giants to hunt for secondary packaging partners. Intel’s approach is considered both cheaper and thermally less complex. Neither SK Hynix nor Intel has confirmed the reports, but the move would reduce the company’s dependence on a single supplier and help unclog the AI infrastructure pipeline. The urgency is real: Goldman Sachs expects 2026 to face the worst DRAM undersupply in 15 years, and SK Group chairman Chey Tae-won has warned of wafer shortages stretching into 2030.

Should investors sell immediately? Or is it worth buying SK Hynix?

On the demand side, SK Hynix is deepening its ties with Microsoft. Chief executive Kwak Noh-Jung is slated to attend the Microsoft CEO Summit, where talks with Bill Gates and Satya Nadella are expected to focus on expanding collaboration around custom AI accelerators. The chipmaker is currently the sole supplier of HBM3E for Microsoft’s Maia 200 accelerator, which boasts 216 GB of memory capacity and 7 TB per second of bandwidth. As Microsoft works to reduce its reliance on external GPU vendors, that exclusive relationship is becoming a powerful strategic asset.

Operationally, the numbers justify the soaring valuation. In the first quarter, SK Hynix generated an operating margin of 72% on revenue of 52.6 trillion won, fueled by a steep rise in DRAM contract prices. Mirae Asset Securities projects a full-year group margin of 62%. Looking ahead, sample shipments of the next-generation HBM4 are planned for the second half of 2026, with mass production slated for 2027. The timeline keeps the company tightly coupled to the next wave of AI architectures.

Yet the premium is not without risk. If SK Hynix fails to smoothly transition HBM4 from samples to volume production, the valuation edge over Samsung — now priced in for the first time — could evaporate just as quickly as it appeared. For now, the market is betting that the packaging pivots, strategic partnerships, and supply constraints will keep the turnaround intact.

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