Chinese semiconductor equities rallied on Thursday as investors reacted to a rebound in global chip stocks and reports that U.S. regulators are considering measures to limit remote access to advanced AI processors by Chinese companies.
Among the notable movers, Cambricon surged by more than 11% and Moore Threads rose about 7%. Semiconductor Manufacturing International Corporation (SMIC) saw gains on both listings: its Shanghai-listed shares rose 2.42% and its Hong Kong-listed stock added 1.67%. Hua Hong Semiconductor advanced 2.7%, and chip equipment maker NAURA Technology climbed 3.12%.
These advances came alongside weakness in certain Chinese technology names. Z.AI fell 7.4%, MiniMax dropped 6.1% and Alibaba declined 4.9%.
The upward movement in mainland chip stocks followed a strong session for U.S. semiconductors on Wednesday, when the Philadelphia Semiconductor Index rose 5.7%. Market participants pointed to robust results at AI cloud provider CoreWeave as a factor that helped ease investor concern about the financing and sustainability of data-centre investment, supporting demand expectations for chipmakers and other suppliers to AI infrastructure.
Chinese financial outlets also highlighted the overnight rebound in U.S. semiconductors as a driver for the domestic rally in semiconductor shares.
Investors were simultaneously weighing reporting that the U.S. Commerce Department is preparing a rule intended to stop Chinese AI companies from remotely accessing advanced chips through data centres located in other countries. That rule could be announced as soon as this month and would extend existing semiconductor-related controls to seven additional countries, including Malaysia, Singapore and Thailand, according to the reporting. The proposal is currently under interagency review and has not been finalised.
The proposed restriction targets a pathway by which Chinese firms obtain computing capacity without physically importing restricted processors. Reporting noted that Tencent, Alibaba and ByteDance have agreements with overseas data-centre operators that provide access to advanced Nvidia chips for AI training.
Market price moves embedded in trading screens reflected the mixed impact. Nvidia (NVDA) was quoted higher by 2.87% in the session, while the broad semiconductor index (SOX) showed a 5.66% gain. Other quoted tickers included 0981 down 0.08%, 0700 down 1.32%, 002371 up 1.89%, 9988 down 5.27%, 688981 up 0.46%, 688256 up 8.55%, 688347 up 1.78%, CRWV up 24.71% and 688795 up 8.36%.
The possibility of further U.S. restrictions has been framed by market observers as a potential catalyst for Beijing to accelerate development of domestic alternatives and to lower reliance on foreign technology. At the same time, the reporting emphasized that Chinese chipmakers still face limits in advanced manufacturing and other segments of the semiconductor supply chain. That reality was noted as a constraint on how quickly domestic firms could substitute for restricted foreign products and services.
Market context and investor focus
Investors are parsing two concurrent influences: the immediate boost to risk appetite from solid U.S. chip-sector performance and the prospect of regulatory changes that could reshape how advanced processors are accessed by Chinese firms. The sector-level rebound in the U.S. helped underpin demand expectations for suppliers to AI infrastructure, while the policy reports have directed attention to the strategic implications for data-centre arrangements and domestic chip capacity building.
At the stock level, gains were concentrated among chip designers, foundry-related names and equipment suppliers, while some broad technology platforms that rely on overseas arrangements for compute saw larger declines in the session.
Bottom line
Chinese chip stocks experienced a notable rally on Thursday, driven by a mix of positive sentiment from U.S. semiconductor gains and reports that U.S. officials may move to restrict remote access to advanced AI processors by Chinese companies. The developments have underscored both potential near-term support for domestic chipmakers and the persistent structural challenges they face in advanced manufacturing and supply-chain depth.