Samsung and SK Hynix shed billions in market value as investors rotate out of AI chip winners and into cheaper sectors
Samsung Electronics dropped roughly 9% on July 2, closing at 286,000 KRW, while SK Hynix took an even harder hit, falling as much as 14.57% to 2,187,000 KRW during intraday trading. The broader Kospi index fell about 5%, dragged down almost entirely by the two chipmaking giants that had been responsible for most of its gains this year.
The sell-off wasn’t a reaction to bad news. It was a reaction to very good news that investors had already priced in, and then some. After Samsung’s shares surged over 180% at their peak earlier in 2026, riding a wave of AI-driven semiconductor demand, traders decided it was time to take some chips off the table.
The great rotation begins #
Samsung had joined the $1 trillion market-cap club back in May 2026, a milestone that seemed almost inconceivable just a year prior. SK Hynix followed a similar trajectory, benefiting from insatiable appetite for high-bandwidth memory chips used in AI training and inference workloads.
Investors began rotating away from high-growth AI and memory chip names, redirecting capital toward undervalued sectors that had been ignored during the semiconductor euphoria.
In late June 2026, the Kospi experienced a similar profit-taking episode, dropping roughly 10% in a single session amid global tech weakness. The July 2 sell-off looks less like a one-off event and more like the second chapter of a broader correction.
Strong fundamentals, shaky sentiment #
Samsung’s Q1 2026 operating profit was forecasted at approximately 57.2 trillion won, driven overwhelmingly by its semiconductor division. When a company reports (or is expected to report) record earnings and the stock drops 9%, it tells you that expectations had gotten ahead of reality.
SK Hynix’s sharper decline suggests that the memory chip segment, which had been the biggest beneficiary of the AI infrastructure buildout, is also the most vulnerable to sentiment shifts.
Despite the pullback, the underlying demand story hasn’t fundamentally changed. AI capital expenditure from hyperscalers continues to grow, and Samsung and SK Hynix remain the dominant suppliers of the high-bandwidth memory that makes large language models possible.
What this means for crypto and broader markets #
Investors should watch Samsung’s upcoming quarterly update closely. If the company confirms record semiconductor profits but the stock continues to slide, it would confirm that this is a valuation reset rather than a fundamental deterioration.
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