Semiconductor stocks rebounded sharply after reports surfaced that China may permit companies to purchase up to 200,000 units of Nvidia's H200 AI processors for model training. The rally was underpinned by strong institutional demand for AI memory chips, evidenced by SK Hynix's $24.5 billion（約3.9兆円） U.S. ADR offering being oversubscribed more than seven times, reversing earlier losses tied to profit-taking and concerns about competing custom chip development.
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Semiconductor stocks including Entegris, onsemi, and Power Integrations jumped 8.2%, 7.3%, and 7% respectively following reports that Chinese authorities may permit companies like Alibaba, ByteDance, and DeepSeek to purchase a limited quantity (capped under 200,000 units) of Nvidia's H200 AI processors. The rally was further supported by SK Hynix's $24.5 billion（約3.9兆円） U.S. ADR offering being oversubscribed by more than seven times.
Why it matters
The semiconductor sector had suffered recent profit-taking and a 9.9% drop two days prior on concerns including DeepSeek's early-stage custom AI inference chip project. The China import permission report and SK Hynix's strong institutional demand signal renewed confidence that the AI memory chip opportunity remains robust, reversing the recent selloff.
What to watch
Entegris has experienced 37 moves greater than 5% over the last year, indicating the market views today's move as meaningful but not fundamentally transformative for the business.
The semiconductor sector's sharp rebound on Tuesday reflects investor reassessment of near-term AI opportunity following a painful two-day selloff. Two days earlier, memory stocks had dropped 9.9% after Samsung Electronics reported record quarterly profit—an earnings beat that paradoxically triggered a textbook "sell-the-news" reaction because the strong results had already been priced in, giving holders immediate reason to lock in gains. That drop was compounded by reports of DeepSeek developing its own custom AI inference chip, reviving structural concerns about whether custom silicon erodes Nvidia's competitive advantage.
Tuesday's reversal was triggered by a report from The Information that Chinese authorities may permit top technology companies to purchase a capped quantity (under 200,000 units) of Nvidia's H200 AI processors. Critically, SK Hynix's concurrent $24.5 billion（約3.9兆円） ADR offering being oversubscribed more than seven times demonstrated that institutional capital remains abundantly available for AI memory infrastructure—a tangible signal that large investors still view the AI memory supercycle as intact despite the earlier profit-taking. The pattern suggests market participants distinguish between near-term volatility (profit-lock-in on confirmed good news) and underlying demand durability (institutional commitment to memory chip supply chains).
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