Chinese Chip Stocks Rally as Index Rebalance Could Drive Billions in Investment Flows
Chinese semiconductor stocks posted strong gains on Wednesday as investors positioned themselves ahead of a major index reshuffle that is expected to generate more than $48 billion in passive investment flows. The rally was also supported by growing optimism surrounding artificial intelligence demand and China’s expanding semiconductor industry.
AI Chipmakers Lead Market Gains
Several leading Chinese chip companies recorded significant advances during the trading session.
AI chip designer Cambricon Technologies surged 10%, while GPU developer Moore Threads Technology climbed 8.5%. Semiconductor equipment manufacturers NAURA Technology Group and Piotech also moved higher, gaining between 2% and 4%.
Among China’s major chip foundries, Semiconductor Manufacturing International Corporation (SMIC), the country’s largest semiconductor producer by volume, rose more than 2% in Hong Kong trading. Hua Hong Semiconductor also performed strongly, advancing nearly 4%.
Index Changes Expected to Attract Billions
The recent gains come after the Shanghai Stock Exchange announced plans to adjust several key indexes.
The exchange revealed that AI-focused chipmakers, including Moore Threads and MetaX Integrated Circuits, will be added to the STAR Market 50 Index. At the same time, the weighting of new-economy companies within the broader SSE 50 Index will increase to 28%.
Analysts believe these changes could trigger substantial capital inflows as passive investment funds rebalance their portfolios to reflect the updated index compositions.
Goldman Sachs Forecasts Massive Capital Inflows
According to Goldman Sachs, the index reshuffle could generate approximately $3.1 billion in inflows specifically for technology hardware and semiconductor companies.
When accounting for all affected stocks and index adjustments, total two-way passive investment flows could exceed $48 billion, making the rebalance one of the most significant events for China’s equity market this year.
Beijing Continues to Support Domestic Chip Industry
The index overhaul aligns with China’s broader strategy to strengthen its domestic semiconductor capabilities and improve investor confidence in the sector.
Beijing has prioritized technological self-sufficiency, particularly in advanced semiconductor manufacturing, as geopolitical tensions and global supply chain challenges continue to reshape the industry.
This policy support has become a key driver behind the sector’s strong performance throughout 2025.
Strong Demand Boosts Chinese Foundries
Fundamental factors are also contributing to the positive outlook for Chinese chipmakers.
SMIC and Hua Hong are reportedly increasing prices for wafer fabrication services as international customers seek alternatives to Taiwan Semiconductor Manufacturing Company’s advanced production nodes.
The surge in artificial intelligence demand has absorbed much of TSMC’s manufacturing capacity, prompting some overseas clients to redirect orders toward Chinese foundries.
AI Boom Continues to Drive Sector Growth
China’s semiconductor industry has maintained strong momentum since the beginning of 2025.
A major catalyst came with the launch of DeepSeek’s R1 artificial intelligence model, which helped spark renewed investor interest in China’s AI hardware ecosystem.
At the same time, U.S. export restrictions limiting Nvidia’s access to the Chinese market have accelerated demand for domestic AI chip alternatives. This trend has benefited companies such as Cambricon and Moore Threads, while also supporting equipment suppliers and semiconductor foundries across the broader supply chain.
Broadcom Earnings in Focus
Investors are also closely watching Broadcom’s upcoming quarterly earnings report, scheduled for release after the U.S. market close.
Market participants view the results as an important indicator of global AI chip demand. A strong earnings performance could further strengthen sentiment across the semiconductor sector and provide additional momentum for Chinese chip stocks.
Global Semiconductor Rally Supports Chinese Stocks
The latest gains in Chinese semiconductor shares mirror a broader rally across global chipmakers as investors increasingly bet that the semiconductor industry will be one of the biggest beneficiaries of the artificial intelligence revolution.
Recent product launches from Nvidia, including several new AI-focused chips and technologies, have also helped reinforce confidence in the long-term growth prospects of the sector.
