China’s AI stocks have suffered a dramatic selloff, with nearly $480 billion erased from the market as investors question whether the country’s technology boom has moved too far ahead of actual profits.
China’s artificial intelligence boom is facing its biggest financial reality check yet. A sharp selloff in Chinese technology stocks has erased an estimated $480 billion in market value, with some of the country’s most prominent AI chipmakers and robotics companies losing nearly half their value.
The downturn has hit the STAR50 index, which tracks major technology companies listed on Shanghai’s STAR Market. The index has fallen approximately 40% from its recent peak, according to an October 26 report by Reuters.
The losses mark a dramatic reversal for an industry that attracted extraordinary investor enthusiasm as China raced to develop domestic AI chips, advanced robotics and alternatives to American technology.
Companies that once saw their shares surge hundreds of percent are now experiencing steep declines as investors reassess their growth prospects. But the collapse in stock prices does not mean China’s AI industry has stopped advancing.
Chinese companies continue developing AI models, processors and robotics systems. What has changed is investors’ willingness to pay high prices for businesses whose future profits remain uncertain.
The selloff also raises questions about whether similar pressures could eventually affect American technology companies, which continue spending billions of dollars on AI infrastructure.
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China’s AI Stocks Have Lost Nearly $480 Billion
The scale of the decline reflects how heavily investors had concentrated their money in companies associated with artificial intelligence.
China’s STAR50 index has dropped roughly 40% in less than four months, wiping out an estimated $480 billion in market capitalization.
The index includes companies involved in semiconductors, advanced computing and other strategic technologies.
Some of the sharpest losses have occurred among businesses that benefited most from the AI investment boom.
| Company | Industry | Reported decline |
|---|---|---|
| Unitree Robotics | Humanoid robotics | Approximately 50% since August |
| MetaX Integrated Circuits | AI processors | Approximately 50% since July |
| Moore Threads | Graphics processors | Approximately 50% since July |
| CXMT | Memory chips | More than 25% in one month |
| Zhongji Innolight | Optical networking | Approximately 60% from its peak |
| Eoptolink Technology | Optical networking | Approximately 60% from its peak |
Source: Reuters, October 26, 2026. The figures cover different periods and are not directly comparable.
The declines are particularly striking given how enthusiastically investors initially welcomed several of these companies.
MetaX and Moore Threads saw their shares jump approximately 700% and 400%, respectively, during their stock market debuts in 2025.
Unitree Robotics attracted enormous demand during its initial public offering, with retail investors reportedly submitting orders worth thousands of times the shares available.
Those gains reflected expectations that China’s domestic technology companies would benefit from government support, growing AI demand and restrictions on access to American technology.
But investor expectations have changed. As share prices fell, China’s broader stock market also weakened. The CSI300 index, which tracks large companies listed in Shanghai and Shenzhen, entered bear-market territory after declining more than 20% from its June high.
The downturn suggests that the selloff is no longer limited to a small group of speculative technology companies.
Why Is China’s AI Bubble Bursting?
The correction reflects a combination of inflated valuations, concerns about profitability and uncertainty surrounding China’s economic outlook. AI stock valuations became difficult to justify.
During the boom, investors paid substantial premiums for companies expected to benefit from the rapid growth of artificial intelligence. Those expectations pushed valuations far above the earnings many businesses were generating.
According to Reuters, the STAR50 index was trading at approximately 100 times trailing earnings even after its recent decline. Earlier in the year, its valuation had approached 250 times earnings.
By comparison, the Nasdaq 100 traded at approximately 30 times earnings at the time of the report. The difference shows how much future growth investors had already priced into Chinese AI stocks.
When confidence weakened, those high valuations left little room for disappointment. AI infrastructure spending has not guaranteed profits
Developing advanced AI systems requires significant investment in computing hardware, data centers, electricity and networking equipment.
Investors initially expected suppliers of those technologies to benefit from years of rapid demand growth.
But the financial returns remain uncertain. Companies can spend billions expanding AI infrastructure without generating enough revenue to recover those costs quickly.
That uncertainty has become more important as investors demand evidence that AI-related businesses can produce sustainable profits.
U.S. technology restrictions have added pressure
China’s AI industry also faces challenges from American export restrictions. The United States has limited Chinese access to some advanced semiconductors and chipmaking technologies.
Additional trade measures could affect Chinese companies supplying equipment to international data centers.
Reuters reported that concerns about potential U.S. restrictions contributed to sharp declines in shares of optical networking suppliers Zhongji Innolight and Eoptolink.
These companies supply components used to connect processors inside high-performance computing systems. Any disruption to international sales could weaken their growth prospects.
China’s wider economic problems are affecting confidence
The AI selloff is unfolding against a difficult economic backdrop. Weak domestic demand, concerns about corporate earnings and uncertainty over economic stimulus have made investors more cautious.
The decline in the CSI300 indicates that broader market conditions are contributing to the pressure on technology stocks.
As investors reduce their exposure to riskier assets, companies with high valuations and uncertain earnings are particularly vulnerable.
China’s AI Boom Has Become a Problem for Beijing
The stock market decline is also a setback for China’s broader technology ambitions.
Beijing has made artificial intelligence, semiconductors and robotics national priorities. Its policies aim to reduce dependence on foreign technology while strengthening China’s position in advanced manufacturing.
A strong domestic stock market was expected to help finance that transition. Instead, the collapse in AI-related shares is making investors more cautious about funding technology companies.
According to Reuters’ October 26 investigation, AI-related stocks had grown to account for approximately 42% of market capitalization and 57% of trading turnover across mainland Chinese A-shares and Hong Kong H-shares, based on Goldman Sachs research.
That concentration left investors particularly exposed when technology shares began falling. The consequences could extend beyond individual shareholders.
Companies preparing initial public offerings may find it harder to attract investors. Businesses seeking additional capital may also face pressure to lower their valuations.
Hong Hao, chief investment officer at Lotus Asset Management, warned that the downturn could disrupt fundraising plans for companies hoping to list on public markets. For Beijing, this creates a difficult balance.
China wants investors to support strategically important technology businesses. But excessive speculation can produce market instability and undermine confidence. The recent selloff illustrates that tension.
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Could China’s AI Stock Crash Spread to the United States?
China’s correction is raising concerns about the sustainability of the wider AI investment boom. American technology companies have committed enormous resources to developing advanced models, building data centers and purchasing specialized processors.
Many of those investments depend on expectations of continued growth in AI demand. The comparison between Chinese and American technology stocks is striking.
According to Reuters’ October 27 video analysis, China’s STAR50 had declined approximately 40% over four months, compared with a roughly 6% retreat in the Nasdaq. That difference suggests investors have reassessed Chinese AI valuations more aggressively.
However, it does not establish that American technology stocks will experience the same decline. The markets have different company structures, earnings profiles and exposure to government policies.
Major U.S. technology companies also generate substantial revenue from established businesses, including cloud computing, advertising and enterprise services. Nevertheless, the underlying financial question is similar: Will future AI revenue justify today’s investment?
Investors will increasingly look for evidence that companies can turn demand for AI technology into sustainable earnings. A failure to meet those expectations could trigger further corrections.
China’s AI Industry Is Not Collapsing, Even as Its Stocks Fall
The distinction between falling stock prices and technological progress is important. China continues developing AI models, semiconductor technologies and robotics systems despite the market downturn.
The country also remains committed to reducing its dependence on foreign technology. A company can lose a significant portion of its stock market value without experiencing an equivalent decline in its research capabilities or commercial operations.
Likewise, a falling share price does not necessarily indicate that its products have become less competitive.
Some analysts believe the correction could create opportunities for investors to buy shares in companies with stronger financial prospects. Others warn that valuations remain elevated.
Even after the decline, the STAR50 was trading at approximately 100 times trailing earnings, compared with roughly 30 times for the Nasdaq 100, Reuters reported.
That difference suggests Chinese technology stocks may remain vulnerable if earnings fail to meet expectations. The selloff could therefore continue even if the underlying technology sector keeps expanding.
What Happens Next?
China’s AI market correction will test whether investors remain willing to finance the country’s technology ambitions at the same pace. Three developments will be particularly important.
First, investors will watch whether AI chipmakers and infrastructure suppliers can demonstrate sustained revenue growth.
Second, U.S. trade restrictions could affect Chinese companies that depend on overseas customers, especially suppliers of data center equipment.
Third, Beijing’s response may influence whether investor confidence stabilizes or deteriorates further.
The broader global AI industry will also be watching. China’s selloff is a reminder that technological progress and financial returns do not always move together. Companies can develop increasingly capable AI systems while their investors lose money because expectations were too high.
The $480 billion decline is evidence of a major correction in China’s AI-related stock market, not proof that artificial intelligence itself has failed. That distinction will matter as investors assess whether the downturn is a temporary reset in valuations or the beginning of a longer period of financial pressure.















