Key Highlights
- Foreign investors drove SK Hynix shares up 12% Monday following positive U.S. technology sector earnings
- Leading American technology companies confirmed continued commitment to AI data center capital expenditure last week
- Samsung gained but underperformed due to potential 18-day labor action beginning May 21
- Barclays upgraded price targets for both Korean memory manufacturers, pointing to deteriorating supply-demand balance
- Citigroup reduced Samsung forecasts while market observers increasingly favor SK Hynix positioning
SK Hynix shares rocketed 12.5% during Monday trading, reaching an all-time peak as international capital flooded into South Korean semiconductor manufacturers. Samsung Electronics experienced gains as well, advancing 5.4%, although considerably behind its competitor.
The rally followed quarterly earnings reports from multiple prominent American technology corporations last week, with each company maintaining their planned capital allocations for artificial intelligence infrastructure. SK Hynix serves as a primary provider of high-bandwidth memory, the specialized semiconductor component essential for AI accelerator performance.
Positive messaging from American technology leaders regarding AI data center requirements typically triggers rapid movement in memory chip equities. SK Hynix has emerged as one of the most direct beneficiaries of this pattern.
Barclays released an optimistic analysis coinciding with Monday’s market action, increasing its valuation target on SK Hynix’s Frankfurt-traded shares by more than 20%, moving from €900 to €1,100. The firm simultaneously raised its Samsung London-listed stock target from $4,000 to $4,250. Both companies retained Overweight designations.
The investment bank stated that the supply-demand imbalance throughout the memory sector “shows no signs of improving any time soon.” Its models project worldwide memory supply expanding in the low twenties percentage range during both 2026 and 2027, while demand acceleration is anticipated to outpace supply growth, meaning the disparity will likely persist through both years.
Barclays anticipates SK Hynix maintaining its dominant position in high-bandwidth memory production. The bank adjusted its earnings multiple for the company to 6x 2026 projections, elevated from 5x, bringing its methodology closer to how its American division evaluates Micron.
Labor Challenges Confront Samsung
Samsung’s relative weakness stemmed from labor uncertainty. The company’s union organized a significant demonstration on April 23, calling for increased profit distribution from the semiconductor business unit. Management’s proposal featuring bonuses and salary adjustments was declined.
The union has subsequently announced plans for an 18-day work cessation commencing May 21 should negotiations fail to produce agreement. This prospect is dampening investor confidence during a period of robust AI memory demand.
Samsung indicated it intends to pursue continued dialogue with union representatives and stands ready to handle any manufacturing interruption. Analysts remain skeptical about the adequacy of these preparations.
Citigroup has already adjusted its Samsung projections downward, referencing probable expenses associated with concessions or incentive programs. Additional labor expenditures could compress margins within a business segment that has been generating substantial profits from AI-driven demand.
Barclays increased its Samsung revenue projections by approximately 8% for 2026 and 17% for 2027, reflecting semiconductor pricing strength exceeding earlier expectations. The firm modeled a threefold increase in Samsung’s high-bandwidth memory revenue during 2026.
SK Hynix Holds Competitive Advantage Currently
SK Hynix resolved its own profit-sharing negotiations with workers at an earlier date, providing it with labor stability benefits now visible in its equity valuation.
Additional regional semiconductor manufacturers also posted gains Monday. MediaTek and ASE Technology Holding each demonstrated improved price performance as AI chip market sentiment strengthened.
Barclays identified China as a monitoring priority, observing that Chinese memory manufacturers are increasing production capacity and capturing market share in mid-to-low tier smartphone segments, though the bank does not anticipate this affecting the data center market.
Citigroup’s revision of Samsung outlook and growing analyst focus on SK Hynix as a comparative outperformer represented notable developments entering the current week.

