Key Takeaways
- Samsung’s shares skyrocketed over 15% during local trading, propelling the company’s market capitalization beyond $1 trillion — making it just the second Asian tech firm after TSMC to achieve this milestone.
- The explosive rally came after Samsung unveiled record-breaking first-quarter results, with operating profits jumping more than eightfold to ₩57.2 trillion ($39 billion).
- Surging demand for high-bandwidth memory (HBM) chips used in AI applications, combined with tight DRAM and NAND supply, is fueling the momentum.
- Reports from Bloomberg indicating Apple may discuss chip manufacturing partnerships with Samsung and Intel further energized investor enthusiasm.
- Rival chipmaker SK Hynix climbed over 10%, contributing to South Korea’s Kospi index breaking above 7,000 for the first time in history.
Samsung Electronics is experiencing what could become its largest single-day stock surge in company history, following exceptional first-quarter financial results and intensifying AI-fueled semiconductor demand.
Shares catapulted more than 15% during Wednesday’s trading session in Seoul, pushing the technology giant’s market value past the coveted $1 trillion threshold. This achievement positions Samsung as only the second East Asian corporation to reach this valuation milestone, following Taiwan Semiconductor Manufacturing Company.
Samsung Electronics Co., Ltd., SMSD.L
The dramatic stock movement follows Samsung’s earnings announcement from the previous week, which revealed first-quarter operating profit of ₩57.2 trillion — representing an extraordinary eightfold increase compared to the same period last year. Total revenue reached an unprecedented ₩133.9 trillion. Remarkably, Samsung’s quarterly profit alone exceeded its entire 2025 fiscal year profit of ₩43.6 trillion.
Adding momentum to the rally, Bloomberg reported that Apple has initiated preliminary discussions with both Samsung and Intel regarding potential chip production in American facilities. Such a development would represent a significant departure from Apple’s traditional dependence on TSMC for semiconductor manufacturing.
SK Hynix, Samsung’s primary competitor in memory chip production, also experienced gains exceeding 10% on Wednesday. These collective advances propelled South Korea’s flagship Kospi index past 7,000 points for the first time in its history — an unprecedented achievement for the benchmark.
Memory Shortage Driven by Artificial Intelligence Appetite
Yu Jing Jie, an analyst at Morningstar, explained the situation straightforwardly: the industry is experiencing an acute shortage of DRAM and NAND chips due to the voracious memory requirements of AI systems. Since bringing new semiconductor manufacturing capacity online typically requires two to three years, supply constraints are expected to persist.
This dynamic benefits Samsung’s profit margins significantly. According to Rolf Bulk from The Futurum Group, elevated memory pricing and robust earnings performance should continue even as additional manufacturing facilities across the industry begin production over the coming years.
Customer reception of Samsung’s newest HBM4 chips has been encouraging, Bulk noted. HBM4 represents the sixth and most advanced generation of high-bandwidth memory technology and is anticipated to serve as a critical component in Nvidia’s forthcoming Vera Rubin AI architecture.
Samsung announced in February that it became the industry’s first manufacturer to commence mass production of HBM4 chips, with shipments already reaching undisclosed clients.
Competitive Landscape: Samsung vs. SK Hynix
SK Hynix currently dominates the HBM market with approximately 55% market share, while Samsung commands roughly 25%. However, Bulk indicated that investors are becoming less concerned about this disparity than previously, because traditional DRAM profitability has recently surpassed HBM margins.
Across the broader semiconductor sector, Micron jumped 11%, AMD climbed more than 16% in extended trading following impressive Q1 earnings results, and Intel advanced nearly 13%.
Chaiwon Lee, analyst at Life Asset Management, observed that Samsung currently trades at a 12-month forward price-to-earnings ratio of approximately six times — notably inexpensive relative to TSMC at roughly 25 times and Micron at around 10 times. While acknowledging risks including intensifying Chinese competition and potential cooling of AI demand, Lee suggested the valuation differential indicates upside potential.
According to FactSet data, Samsung’s stock was also tracking toward a record closing high as of Wednesday’s trading session.





