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Technology · Asia

China’s STAR 50 loses more than 40% as AI valuations face scrutiny

China’s STAR 50 Index fell more than 40 per cent over four months, according to CNA. The decline erased about US$480 billion in market value and has intensified questions about whether AI companies’ earnings justify their share prices.

AI-assisted synthesis · Based on 5 outlets' reporting · Article text read from 1 of 5 outletsHow it's made

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Updat3 graphic: China
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What happened

Key facts

  • China’s STAR 50 Index fell more than 40 per cent (per CNA, technology.org).
  • CNA said the STAR 50’s decline occurred over four months (per CNA, technology.org).
  • CNA reported that as of Oct 29 the index had fallen more than 40 per cent over four months (per CNA).
  • CNA reported that as of Oct 26 the STAR 50 traded at around 100 times the combined earnings of its constituent companies over the previous 12 months, down from a peak of nearly 250 times, citing Reuters (per CNA).
  • CNA said analysts viewed the falling share prices as not necessarily indicating a setback for China’s broader AI ambitions or predicting a similar correction in other markets (per CNA).

The brief

China’s STAR 50 Index has fallen more than 40 per cent over four months, erasing about US$480 billion in market value, CNA reported. The Shanghai Stock Exchange index tracks 50 technology and innovation companies. The decline has brought renewed scrutiny to the prices investors assign to AI-linked companies and whether their earnings support those valuations.

CNA reported that, as of Oct 29, the index had lost more than 40 per cent over the four-month period. A separate snapshot in the article, dated Oct 26, put the STAR 50 at around 100 times the combined earnings of its constituent companies over the previous 12 months. That valuation was below a peak of nearly 250 times, according to figures CNA attributed to Reuters.

The earnings comparison puts the central question in concrete terms: whether AI companies can generate enough profit to justify their share prices. CNA said the downturn has prompted scrutiny of whether substantial investment in AI can translate into higher profits.

The figures describe market valuations and trading, rather than establishing how much profit the companies will earn in the future. AI-linked shares have a substantial presence in the wider markets cited in the account.

Citing Goldman Sachs figures, CNA reported that these stocks made up about 42 per cent of market capitalisation and 57 per cent of trading activity across mainland-listed A shares and Hong Kong-listed H shares. Those figures cover the two share-market categories together; they are not stated as measurements of the STAR 50 alone.

The scale of the fall has raised questions about whether China’s AI ambitions are also in jeopardy. CNA reported that analysts cautioned against treating lower share prices as proof of a setback for China’s broader AI ambitions. The same analysts also said the decline did not necessarily predict a similar correction in other markets.

The account therefore presents a sharp market repricing alongside uncertainty about what it means for company profitability and the wider AI sector. The market figures show the decline and the index’s valuation at the stated snapshots; the analysts’ assessment leaves open whether those movements signal a broader change in China’s AI development or in other markets.

Why it matters

  • The STAR 50’s decline erased about US$480 billion in market value, a concrete loss in the index’s valuation.
  • At about 100 times trailing combined earnings as of Oct 26, the index’s valuation underscores the question of whether AI companies’ profits can justify their share prices.
  • AI-related stocks accounted for about 42 per cent of market capitalisation and 57 per cent of trading activity across mainland-listed A shares and Hong Kong-listed H shares, according to figures CNA attributed to Goldman Sachs.
  • CNA’s account says analysts cautioned that the share-price decline does not necessarily signal a setback for China’s broader AI ambitions or forecast a similar correction elsewhere.

What to watch next

  • Whether earnings at companies represented in the STAR 50 support share prices, the profitability question CNA said the downturn raised.
  • Whether the STAR 50’s valuation moves further from the roughly 100-times trailing earnings reported as of Oct 26.
  • Whether analysts’ assessment that the decline does not necessarily signal trouble for China’s broader AI ambitions remains applicable.
  • Whether AI-related stocks’ share of market capitalisation and trading activity across mainland-listed A shares and Hong Kong-listed H shares changes from the figures CNA cited.

How it's being covered

Coverage analysisShow details
5 source articles · 5 unique outlets
Outlet political mix: Too few rated· 2 Center · 3 unrated
Where the outlets are based: Asia 40% · Unknown 40% · Other 20%
Outlet political mix
Too few rated
Left
Center
Right
0 outlets
2 outlets
0 outlets
The marker shows coverage balance: each unique outlet counts once. 3 unrated outlets are not included.
Geography
Where the outlets covering this story are based.
5 unique outletsDominant coverage: Asia
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Timeline

Developments from this story's sources, dated background we compiled and fact-checked, and our earlier coverage. Each row says which.
  1. China’s longer-term AI policy framework dates to the State Council’s “New Generation Artificial Intelligence Development Plan,” issued on July 20, 2017.
    Background · from our historical context
  2. The Shanghai Stock Exchange opened its Science and Technology Innovation Board with 25 companies.
    Background · compiled and fact-checked by Updat3
  3. The Shanghai Stock Exchange launched the STAR 50 Index.
    Background · compiled and fact-checked by Updat3
  4. China’s legislature approved the 14th Five-Year Plan, which identified AI as a strategic technology-development area.
    Background · compiled and fact-checked by Updat3
  5. OpenAI made ChatGPT publicly available on November 30, 2022, prompting technology companies and governments, including those in China, to assess the commercial and strategic implications of generative AI.
    Background · from our historical context
  6. China’s Cyberspace Administration and other agencies issued interim measures for generative-AI services.
    Background · compiled and fact-checked by Updat3
  7. China’s interim measures for generative-AI services took effect.
    Background · compiled and fact-checked by Updat3
  8. DeepSeek released its R1 reasoning model.
    Background · compiled and fact-checked by Updat3

How we got here

Before the 2026 decline, China’s AI investment debate had already been shaped by the launch of generative-AI services and by rules governing their release. OpenAI made ChatGPT publicly available on November 30, 2022, prompting technology companies and governments, including those in China, to assess the commercial and strategic implications of generative AI.

China’s Cyberspace Administration and other agencies issued interim measures for generative-AI services on July 13, 2023; the rules took effect on August 15, 2023, and set requirements for providers offering such services to the public.

Original sources

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