By Laura Anderson, Welp Magazine. Published and last updated October 30, 2026.
The AI bubble burst is the phrase trending across China and Hong Kong today. But is it true? Chinese AI stocks have crashed. Yet the global picture is more mixed than the headlines suggest.
Here is what is confirmed, what is hype, and what to watch next. We checked the numbers and flag where sources disagree.
Quick Answer: Has the AI Bubble Burst?
- Short answer: In China, AI stocks have crashed. Globally, it is a warning, not a collapse.
- The crash: The STAR 50 index, which tracks Chinese AI and chip leaders, is down about 40% from its peak, erasing roughly $480 billion.
- Hong Kong: The Hang Seng is down more than 12% this year, a slide rather than a crash.
- The US: CNN’s experts say spillover is unlikely. Nvidia’s next earnings report is the next big test.
- The label: “Bubble burst” is the media’s framing. Beijing’s Global Times calls it a correction.
What Happened to China’s AI Stocks?
China’s STAR 50 index tracks leading AI and chip companies on Shanghai’s STAR Market. It is down about 40% from its peak. That has erased roughly $480 billion in market value in under four months, according to reports from Digitimes and Yahoo Finance.
| Measure | Reported figure | Note |
|---|---|---|
| STAR 50 index | Down about 40% from peak | Sources differ on June or July peak |
| Value erased | About $480 billion | Under four months |
| Hang Seng index | Down more than 12% this year | CNN |
| MiniMax (Hong Kong) | About 87% below its high | One report |
| AI share of China market | About 42% of market value, 57% of turnover | Goldman Sachs |
Is the AI Bubble Really Bursting? Confirmed vs Hype
Careful reading matters here. “AI bubble burst” is the media’s framing. The data supports some claims and not others.
| Claim | Verdict | Why |
|---|---|---|
| China’s AI stocks crashed | Confirmed | STAR 50 down about 40% |
| Hong Kong crashed | Overstated | Hang Seng is down about 12% this year, a slide |
| The global AI bubble burst | Not confirmed | CNN’s experts say spillover is unlikely |
| It is just a correction | Disputed | Beijing’s Global Times says so, others call it a burst |
| US AI stocks are safe | Not guaranteed | US AI and chip stocks also fell sharply in mid-October |
Why Did China’s AI Stocks Fall?
Analysts point to a mix of causes. We found no reliable source tying the fall to one single trigger.
- Very high valuations: One analysis says the STAR 50’s price-to-earnings ratio once neared 250 and is still around 100. The Nasdaq 100 is around 30. The sources do not agree on whether this is trailing or forward earnings.
- Heavy concentration: Goldman Sachs estimates AI stocks make up about 42% of China’s combined mainland and Hong Kong market value. They make up about 57% of turnover.
- Crowded trading: When many investors own the same theme, a small shift can trigger big selling.
- Supply and competition: Reports say a 60 billion yuan state-backed AI fund began deploying in October. They also say Nvidia’s share of China’s AI accelerator market fell to 34% in the first half of 2026 as Huawei gained ground.
What Is Happening in Hong Kong?
Hong Kong is weaker, but it is not in free fall. CNN reports the Hang Seng has fallen more than 12% this year. Analysts cite pressure from mainland selling and exposure to Chinese tech companies.
Some individual stocks have been hit much harder. MiniMax shares in Hong Kong reportedly closed 87% below their earlier high. Morgan Stanley reportedly expects offshore Chinese stocks to fall another 10% to 15% before they bottom. That is a forecast, not a fact.
Is the US AI Bubble Next?
This is the big question. CNN’s experts say China’s selloff is unlikely to cause significant spillover into global markets. However, US AI stocks have had their own scare. In mid-October, 20 of the most valuable AI and chip stocks reportedly lost more than $1 trillion in a single week. Drivers cited include AI financing worries, higher rates and competition.
In addition, investors now watch Nvidia closely. Its next earnings report on November 17 is a major test of whether AI spending still delivers returns. For more on the AI race, read our Gemini 4 Argon report and our look at Tesla Optimus production and the robot spending bet.
What Beijing and Skeptics Say
- Beijing’s view: The Global Times rejects the bubble burst label and calls the fall a correction of overheated valuations.
- The bear case: Valuations were stretched, trading was crowded and returns from AI spending were still unproven.
- The bull case: Real AI demand continues, and a reset can make the market healthier.
What the AI Bubble Burst Means for Investors and Businesses
- Investors: Avoid panic decisions. Check how concentrated your holdings are in AI stocks.
- Businesses: AI projects still need real returns. Watch costs, since spending on computing is huge, as we explain in data center heat waves and where servers go next.
- AI builders: Funding may tighten for weaker companies while strong ones keep growing.
- Everyone else: A stock selloff does not switch off AI tools. Products keep shipping.
This article is for information only. It is not investment advice.
What to Watch Next
- Nvidia’s earnings report on November 17.
- Whether the STAR 50 stabilizes or falls further.
- Any Chinese government support for markets.
- Signs of spillover into US and global tech stocks.
- Follow-up reports on the Hang Seng.
Official Sources and Further Reading
Read CNN’s report on China’s AI stock selloff and Digitimes on the STAR 50 plunge. Browse more in our AI coverage.
About the Author and Our Editorial Standards
Laura Anderson covers AI, technology and markets for Welp Magazine, part of Fair Media Group. We check claims against multiple sources. We label forecasts as forecasts and flag where figures conflict. We update articles when facts change. This article was last updated on October 30, 2026.
How We Reported This
This article draws on CNN, Digitimes, Yahoo Finance, CNBC, technology.org and market data summaries, as of October 30, 2026. Several figures vary between outlets, including the peak date of the STAR 50, and we note where they do. We did not find sources tying the fall to deflation or stimulus, so we do not claim that. This is not investment advice.
References and Further Reading
- CNN: Why isn’t China’s AI and tech boom saving its stock markets?
- Digitimes: China AI stock bubble bursts as STAR 50 plunges 40%
- Yahoo Finance: AI bubble bursts in China, wiping $480 billion
- CNBC: Nvidia, AMD, Dell sink in global tech rout
Frequently Asked Questions About the AI Bubble Burst
Has the AI bubble burst?
In China, AI stocks have fallen sharply. The STAR 50 is down about 40% from its peak, wiping out roughly $480 billion. Globally, the evidence points to a selloff and warning signs, not a confirmed collapse. Most experts avoid calling it a bubble burst until the damage spreads.
What is the STAR 50 index?
The STAR 50 tracks 50 leading companies on Shanghai’s STAR Market, which focuses on technology, including AI and chips. It is a key gauge of China’s AI trade.
How much have Chinese AI stocks fallen?
Reports say the STAR 50 has fallen about 40% in under four months, erasing around $480 billion in market value. Sources differ on whether the peak was in June or July.
Is the Hong Kong stock market crashing?
Not exactly. CNN reports the Hang Seng index is down more than 12% this year. Some individual AI stocks have fallen far more. MiniMax shares reportedly closed 87% below their earlier high.
Why did China’s AI stocks fall?
Analysts point to very high valuations, heavy concentration in one theme and crowded trading. Goldman Sachs estimates AI stocks are about 42% of the combined mainland and Hong Kong market value and 57% of turnover.
Will the China AI crash hit the US?
CNN’s experts say significant spillover into global markets is unlikely. However, US AI stocks also sold off in mid-October, so investors are watching Nvidia’s earnings on November 17.
What does Beijing say about the selloff?
Beijing’s Global Times rejects the bubble burst label and calls the fall a correction of overheated valuations.
What should investors watch next?
Watch Nvidia’s November 17 earnings, whether Chinese AI stocks stabilize, Morgan Stanley’s reported warning of a further 10% to 15% fall in offshore Chinese stocks, and signs of spillover into US tech. This is not investment advice.