A SK Hynix flag (R) and a South Korean nationwide flag (L) flutter outdoors the corporate’s Bundang workplace in Seongnam on Jan. 26, 2024.
Jung Yeon-je | Afp | Getty Photos
London — Outsized returns for memory-related shares have helped gasoline substantial beneficial properties in U.S. and South Korean fairness markets in recent times — however market watchers warn buyers neglect the market’s cyclicality at their very own danger.
The reminiscence trade has been in a interval of sustained development for the reason that launch of ChatGPT in December 2022, which triggered big demand for high-bandwidth reminiscence, or HBM.
Samsung and SK Hynix are among the many largest producers of HBM chips, and their inventory costs have soared 114% and 186% increased year-to-date, respectively. US-based Micron Know-how and SanDisk have every superior 141% and 156% in 2026.
Central to the thesis underpinning the bull run in reminiscence shares is the assumption that the trade has shaken off its previous cyclicality, whereby demand for storage fluctuates considerably whereas provide stays largely fastened.
Executives have argued that AI has upended the trade’s historical past of growth and bust, and a structural provide scarcity implies that costs may keep excessive for years.

William de Gale, portfolio supervisor at BlueBox Asset Administration, instructed CNBC’s Europe Early Version on Wednesday that the trade tends to have “monumental ups and downs”.
“In the long term it is a fairly dreadful trade,” he stated.
“I think that is nonetheless the case each time folks make an argument that the reminiscence cycle is gone, and it is now a long-term value-creating trade – simply earlier than all of it goes horribly mistaken.”
New improvements
Although reminiscence chip provide is extraordinarily constrained at current, Alphabet’s Google on March 24 unveiled TurboQuant, a brand new compression technique, which it says may cut back the quantity of reminiscence required to run massive language fashions by six occasions.
It’s designed to make AI fashions extra environment friendly, a serious purpose of the main labs.
Such developments have the potential to slash demand for AI reminiscence chips, which have been a important part to coach up big LLMs from firms like Google, OpenAI and Anthropic.
Deutsche Financial institution wrote in a Tuesday observe that buyers ought to “proceed to brace themselves for steady AI-related disruption”, as evidenced by TurboQuant, which precipitated a pointy decline within the share value of the largest reminiscence suppliers upon its launch.
The analysts added, nevertheless, that it “stays to be seen” whether or not the TurboQuant method will create a structural shift in demand.
Jon Cunliffe, head of funding workplace at wealth supervisor JM Finn, instructed CNBC that there’s scope for manufacturing to extend meaningfully over the subsequent three years, easing provide constraints, “particularly if AI demand grows at a extra regular tempo.”
“In the present day’s share costs assume that costs keep excessive for a very long time, firms keep very disciplined about not over‑investing, and revenue margins stay significantly better than previously,” he added.
“We might additionally spotlight that the sector has skilled a excessive diploma of momentum crowding in latest weeks, which has made it weak to a shakeout.”
Although forecasting when reminiscence provide may exceed demand is an unimaginable job, buyers should train warning when investing in an trade with “traditionally common returns on capital that’s priced to make very excessive returns in future”, in accordance with Andrew Lapping, chief funding officer at Ranmore Fund Administration.
“A leopard doesn’t usually change its spots,” Lapping stated of the potential for a structural shift within the reminiscence sector.
South Korean focus danger
Samsung and SK Hynix are accountable for sending South Korea’s Kospi to stratospheric heights throughout 2025 and 2026. Collectively, the shares comprise over 50% of your complete index.
Steve Brice, international chief funding officer at Customary Chartered, instructed CNBC’s Squawk Field Asia on Could 13 that he believes peak optimism round Korean equities is “not too far across the nook”.
“I used to be in Korea final week and we have been advising purchasers to take earnings on components of their portfolio and rotate right into a globally diversified portfolio,” he stated.
Nonetheless, some banks stay bullish on the 2 companies’ prospects, with Nomura estimating SK Hynix inventory to hit 4 million received and Samsung Electronics to achieve 590,000 received over the subsequent 12 months.
That might suggest an advance in Samsung’s share value of 20% and see SK Hynix double, based mostly on present costs.

— CNBC’s Arjun Kharpal additionally contributed to this report.




