South Korean chipmaker SK Hynix has vaulted past a $1 trillion valuation on the back of an AI gold rush, but the same forces propelling its rise are also stoking fears of market fragility.

Analysts bullish on the “AI memory super-cycle” frame the company’s 250%-plus share surge this year as only a midpoint, not a peak. One analysis argues that “SK Hynix has surged 250% this year. Analysts say the AI-fueled rally may be only halfway done,” emphasizing that the AI boom in high-bandwidth memory (HBM), DRAM and NAND is still in its early stages.¹ Supporters highlight that earnings upgrades are outpacing even the rapid share-price gains, which makes the stock appear “relatively inexpensive” on a forward-earnings basis.¹

A related view stresses SK Hynix’s strategic position at the heart of AI infrastructure. As a key supplier of HBM to Nvidia and other AI chip leaders, the company is portrayed as a core beneficiary of surging data-center and cloud investment, with demand for AI-related memory chips described as “levels never seen before.”¹ This camp sees the current AI cycle as having “years to run,” with the stock framed as one of “the most important AI plays in the market today.”¹

Yet the same liberal-leaning coverage flags systemic risks underneath the euphoria. A second report notes that SK Hynix’s rise, alongside rival Samsung Electronics, has pushed both firms to account for more than 40% of South Korea’s Kospi index, raising alarms over concentration and volatility.² While that piece concedes that “SK Hynix hits $1 trillion valuation as AI boom lifts South Korean chip stocks,” it also warns that the benchmark is now heavily exposed to any downturn in global data-center spending or supply-chain shocks.²

Taken together, the perspectives paint a paradox: SK Hynix is simultaneously hailed as undervalued in an “early innings” AI cycle and criticized as a single point of failure in an increasingly AI-dependent market structure.