Shanghai, Jan 18, 2026, 07:11 China Standard Time — Market closed.
- Cambricon Class A shares closed Friday 0.6% higher, at 1,424.05 yuan
- Starting Jan. 19, China’s exchanges will raise the minimum margin requirement for new borrowings from 80% to 100%
- Traders will be eyeing Monday’s open closely to see if leveraged bets in AI-linked stocks are being trimmed
China’s stricter margin-trading rules kick in Monday, spotlighting heavily traded AI stocks like Cambricon Technologies Corp. Ltd. Class A once again.
Cambricon’s shares on the Shanghai exchange rose 0.64% to close at 1,424.05 yuan Friday, with roughly 7.23 million shares changing hands, according to data from 8 .
By Friday’s close, the stock’s market cap stood near 600.5 billion yuan, per StockAnalysis.com. That scale has made it a favored gauge for onshore AI sentiment. 1
Why it matters now: China’s securities regulator announced plans to tighten market oversight and clamp down on excessive speculation after weeks of heavy trading. Starting Jan. 19, exchanges will increase the minimum margin requirement for new borrowings from 80% to 100% — meaning investors must put up full cash upfront to buy shares on margin. Officials are framing this as a measure to cool the market. 2
The broader market finished lower heading into the weekend. The CSI 300 blue-chip index dropped 0.41% on Friday, per Investing.com data, while Cambricon managed to stay in the green despite the index’s retreat. 3
Cambricon’s shares fluctuated between 1,408.03 and 1,445 yuan on Friday. The stock’s 52-week range, stretching from 520.67 to 1,595.88 yuan, highlights the rapid shifts in sentiment surrounding the domestic AI sector. 4
Traders are zeroing in on one local indicator: “main funds” flow. According to Securities Times, which cited DataBao, Cambricon pulled in a net 580 million yuan in “main fund” inflows on the STAR Market Friday, leading the board. Montage Technology and Hua Hong followed behind, the report noted. (The “main funds” figure estimates net buying from large orders.) 5
Cambricon develops AI processor chips for cloud servers and edge computing, along with related software and systems, according to its corporate profile. 6
The week ahead isn’t solely focused on China’s rulebook. Global markets have been reacting to changing views on U.S. interest rates and the staying power of AI spending. Reuters highlighted a fresh burst of excitement around AI, fueled by strong earnings from Taiwan’s TSMC, even as bets on rate cuts lost momentum. 7
Cambricon’s Monday debut boils down to one thing: volume and price movement. A steady start would signal the market is settling around the new margin rules. A sudden plunge might point to forced selling.
But the rule change could backfire for high-valuation tech stocks. If margin traders scramble to slash their exposure all at once, selling pressure could snowball fast, particularly in names widely used as leverage vehicles.
Next on the docket: the Jan. 19 rollout of the 100% minimum margin requirement and how regulators respond on enforcement. Traders tracking Cambricon will be keen to see if it can stay above Friday’s intraday low of 1,408 yuan once Shanghai resumes trading.
