China's CSI 300 Enters Bear Market as State Buying Struggles to Halt 10-Week Rout

A 20% fall puts China's market support to the test

China's CSI 300 index fell 20% from its June peak on Thursday, October 22, 2026, reaching the threshold commonly used to define a bear market as disappointing earnings and fading hopes for large economic stimulus prolonged a historic retreat.

The benchmark, which tracks 300 of the largest stocks listed in Shanghai and Shenzhen, fell as much as 1.6% during Thursday's trading. It had recorded 10 consecutive weekly declines and was down about 2.6% so far this week. A gauge of major Chinese companies listed in Hong Kong dropped as much as 2.9% on Thursday.

The losses continued despite signs of buying by state investors and an improvement in economic growth. Third quarter gross domestic product rose 4.5% from a year earlier, compared with 4.3% in the second quarter. Investors nevertheless remained focused on weak household demand, pressure on company profits and a global retreat from artificial intelligence shares.

Central Huijin Investment, a state investor leading market stabilization efforts, may still have about $188 billion available for purchases, according to analyst estimates. The immediate challenge is whether deploying that money can steady a market where households increasingly prefer bank deposits and technology companies face tougher expectations after an earlier rally.

A bear market describes the size of a decline from a recent high. For an investor whose holdings moved exactly with the CSI 300, the fall would have reduced an investment worth 100 yuan at the June peak to roughly 80 yuan, before fees or dividends.

How the decline reached this point

The CSI 300's retreat began after its June peak and deepened through successive weeks of selling. Earlier in the week, it stood about 17% below that high, following a loss of roughly 3.4% over the previous five trading sessions. A brief rise of 0.3% on Monday after stronger economic growth figures failed to interrupt the broader decline.

The sequence shows how repeated attempts to support confidence have met renewed selling:

• April 2025: State investors bought shares during the tariff shock, with estimated support of about $27 billion to $28 billion.
• June 2026: The CSI 300 reached the peak from which its subsequent 20% decline is measured.
• July and August 2026: A broad stabilization effort involving regulators, state investors, insurers and asset managers deployed an estimated $27 billion to $28 billion.
• October 9 to October 20: State investors put an estimated $15 billion into funds tracking broad market indexes.
• October 22: The CSI 300 reached bear market territory during Thursday's trading.

The 10 completed weeks of losses represented a record losing streak for the benchmark. By Thursday, the market was heading toward another weekly decline, putting an eleventh consecutive loss in view.

Technology shares suffer the deepest damage

China's technology indexes have fallen much further than the CSI 300. The STAR 50, which tracks major companies on Shanghai's technology board, lost nearly 40% during the current half year. The ChiNext index in Shenzhen fell about 36%. Chipmakers MetaX and Moore Threads each lost roughly half their market value.

Artificial intelligence and semiconductor shares led the retreat after a strong rally earlier in the year. Investors became more concerned about the prices they were paying for future growth, while a global selloff in AI investments added pressure.

A company's valuation reflects how much investors will pay for its earnings or expected earnings. When expectations rise rapidly, share prices can climb faster than current profits. A change in confidence can then cause sharp losses even while the business continues to expand.

China's growing AI capabilities remain part of the optimistic case for its stocks. Daniel Gerard, senior multi asset strategist at State Street Markets, said those capabilities could attract global investors back before corporate earnings recover. For now, the same sector that might support renewed interest is carrying some of the heaviest losses.

CATL exposes pressure beneath industrial strength

Contemporary Amperex Technology, better known as CATL, added to investor concerns when its shares fell 12% on Wednesday after quarterly profit growth came in below expectations as policy support wound down. The battery producer is a major supplier to the global electric vehicle industry.

Jordan Cvetanovski, chairman and chief investment officer at Pella Funds, said years of investment in production capacity were creating lasting difficulties for Chinese companies. He described the problem this way:

I think China is really struggling with reining in the problems that they've had in the past from the overbuild of capacity and other things,

Cvetanovski still sees selected investment opportunities in batteries. His assessment captures the tension facing the industry: Chinese manufacturers can be globally competitive while also struggling to protect profits in an intensely competitive market.

Excess capacity means factories can produce more goods than customers are willing to buy at profitable prices. Companies may cut prices to win orders, leaving less money from each sale. For shareholders, rising production or sales therefore offers only part of the answer. The amount a company keeps after paying its costs matters too.

Official profit figures show a divided economy

The National Bureau of Statistics' industrial profits report shows how uneven corporate performance had become before the latest market losses. Profits at industrial enterprises with annual main business revenue of at least 20 million yuan rose 15.7% in January through August 2026, reaching about 5.27 trillion yuan. August's increase was a much slower 4.2% from a year earlier.

Manufacturing profits rose 17.4% over the eight months, but results varied sharply by industry. Profits in computer, communications and other electronic equipment manufacturing rose 109.9%. Electrical machinery and equipment profits fell 5.2%, while vehicle manufacturing profits dropped 16%.

The revenue and cost figures help explain the pressure. Electrical machinery companies increased revenue by 11.5%, but operating costs rose faster, by 12.6%. Vehicle manufacturers recorded revenue growth of 2.9% against a 4% rise in operating costs. In both industries, companies sold more while earning less profit.

Across the full industrial survey, profit margins improved to 5.66%, up 0.44 percentage points from a year earlier. That means surveyed companies earned about 5.66 yuan in profit for every 100 yuan of revenue. The national improvement sat alongside substantial declines in several industries important to stock investors.

Unpaid bills and inventories add strain

Chinese industrial companies were also carrying more goods in storage and waiting longer to collect payments. At the end of August, finished goods inventories reached 7.36 trillion yuan, up 11% from a year earlier. Accounts receivable, money owed by customers, rose 9% to 29.48 trillion yuan.

Both increased faster than industrial revenue, which grew 6.6% over January through August. The average collection period reached 72.2 days, 0.9 days longer than a year earlier. Finished goods spent an average of 21.3 days in inventory, an increase of 0.6 days.

For a factory, slower payment can make daily operations more difficult even when it records a profit. Wages, suppliers and interest payments still require cash. Goods waiting in warehouses also tie up money that could otherwise fund new orders or repay debt.

The figures help explain why investors are looking beyond production totals. Strong output is more attractive to shareholders when it comes with reliable payment, manageable inventories and profits that can be sustained.

State investors have money, but face a longer task

Rebecca Sin and other analysts estimate that Central Huijin raised $231 billion through sales of exchange traded funds in the first half of 2026 and redeployed $43 billion after purchases resumed in July. That leaves an estimated $188 billion, enough to finance about 75 trading sessions of buying at the recent pace.

An exchange traded fund, or ETF, holds a basket of investments and trades on a stock exchange. Buying a fund that tracks a broad index allows state investors to support many shares through a single instrument. China's state investors involved in these efforts are commonly called the national team.

The estimated $15 billion deployed from October 9 through October 20 was smaller than the roughly $27 billion to $28 billion used in each of the previous two rescue rounds. Recent fund flows also suggest a greater focus on technology. The STAR 50 and ChiNext together accounted for about 32% of estimated state purchases in October, compared with 11% historically. The CSI 300's share fell to about 45% from 55%.

The E Fund ChiNext ETF attracted nearly 19.4 billion yuan during October, while the ChinaAMC STAR 50 ETF received more than 22.7 billion yuan in net inflows. China Securities analysts, including Yao Ziwei, pointed to large flows into leading funds and heavier trading near the close as signs of institutional support. Authorities had not officially confirmed the scale of the latest state purchases.

Slowing a fall is easier than restoring confidence

Zhu Zhenxin, head of Asymptote Investment Research in Beijing, said intervention was intended to prevent a dangerously rapid decline rather than guarantee a market reversal. He described how the pace of selling could shape further purchases:

If the market falls too quickly, the national team will probably continue buying, though the intervention may not be enough to reverse the market," he said. "If the decline slows or the market moves sideways, the buying will probably stop.

A long, gradual decline can require repeated purchases as investors continue to sell. Sin's assessment was that this could cost more than responding to a sudden burst of panic, especially without a recovery in global equities.

The previous rescue offers a concrete example. The Shanghai Composite rose more than 4% in August after state buying, then resumed falling and reached its lowest level since August of the previous year during October. In 2024, sustained ETF buying also cushioned the market through the summer, while a lasting turnaround arrived only after broader policy measures in September improved sentiment.

Beijing has continued to favor targeted, incremental support rather than the large fiscal packages some investors expected. Third quarter growth of 4.5%, above the 4.4% consensus forecast, kept expansion within the government's annual target range of 4.5% to 5%. Growth over the first nine months was 4.6%, and September industrial output rose 5.5%.

Households weigh safety against a possible rebound

Individual investors account for about 90% of daily trading in China, according to HSBC figures, compared with about 20% to 25% on the New York Stock Exchange. China's share is therefore roughly four times as large, making changes in household confidence especially important to daily trading.

Shaun Rein, managing director at China Market Research Group, cited geopolitical uncertainty, worries about an AI bubble and weakening consumer confidence as sources of further selling pressure. Weak property and employment conditions have encouraged investors to choose time deposits, which lock money away for an agreed period in return for interest.

Rein explained the preference for safety:

For Chinese, it's about wealth preservation,

Rein nevertheless called the selloff excessive, pointing to resilient exports and signs of improving property prices in major cities. Earlier signs of an uneven property recovery included about 22,000 Shanghai resale home transactions from March 1 to March 23, up 170% from the same period in February. The revival was stronger among wealthier buyers, while developers continued to face debt and construction problems.

Rein predicted a strong rebound in Chinese equities in 2027. Investors will next be watching further third quarter company results for evidence of stronger profits and future policy announcements for measures supporting household demand. No timetable for a broader stimulus package has been announced.

Key Points

• The CSI 300 fell 20% from its June peak during trading on October 22, following 10 consecutive weekly declines.
• Technology shares suffered deeper losses, with the STAR 50 down nearly 40% during the current half year.
• CATL shares fell 12% on Wednesday after quarterly profit growth disappointed investors.
• Official industrial profits rose 15.7% in January through August, but electrical machinery and vehicle manufacturing profits declined.
• Central Huijin may have about $188 billion available for further purchases, according to analyst estimates.
• Economic growth improved to 4.5% in the third quarter, while weak household confidence and pressure on company profits continued to weigh on stocks.