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Cambricon drops 5.7% on reports the US may let Nvidia's H200 back into China
Cambricon fell 5.7% and SMIC 3.6% on September 27 against a 2% drop in the CSI 300, as reports said the US may ease limits on Nvidia's H200 chips. If buyers can get American chips, the two stocks depend on how firmly Beijing enforces its preference for local suppliers.
The Investor · Invest desk
What happened
- Years of tightening US export controls pushed Beijing to put billions into a domestic chip supply chain, and Cambricon and SMIC drew investment as proxies for self-reliance.
- China's government has signaled that it still prioritizes domestic suppliers over approved foreign models, though investor sentiment does not always follow its directives.
- Crypto Briefing also cites OpenAI's announced pause on frontier model work as pressure on Asian chip stocks broadly.
- In August, Zhongji Innolight and Eoptolink fell roughly 10% after news of US import bans on certain components, and the CSI 300 telecom services index lost 9%.
Compiled by The InvestorSomething wrong?How this is made
Why it matters
- exposure Cambricon and SMIC shareholders now have a US licensing decision priced into their shares, and neither company has any say over its timing or terms.
- decision A Chinese cloud provider offered approved H200s must choose between a cheaper, more capable chip and Beijing's preference for local suppliers, and its first orders will show which carries more weight.
- contradiction The source that blames the H200 reports also names an OpenAI pause as pressure on the same stocks, so Cambricon's loss beyond the index cannot yet be assigned to either cause.
Take the index out and the H200 effect gets smaller without going away. Net of a 2% fall in the CSI 300 on September 27 [1], Cambricon lost about 3.7 percentage points more than the market and SMIC about 1.6 [9]. Crypto Briefing attributes that gap to reports that the US may ease restrictions on Nvidia's H200 [3]. The report does not say who is proposing the easing or on what terms [3].
Part of the demand behind both stocks was set in Washington: buyers barred from American chips took local ones [8]. In Crypto Briefing's view, approved Nvidia parts, even in limited quantities, would pull Chinese companies and cloud providers toward chips that do more for less money [10]. Each yuan a cloud provider spends on an H200 is a yuan it does not spend on a domestic chip, and investors who bought these shares as self-reliance proxies were paying for that yuan [8][10].
What remains is Beijing's stated preference for local suppliers [5], and the outcomes depend on how it is enforced. A formal US easing met only with official signals would shrink the premium investors paid for self-reliance. An easing met with binding purchase rules would leave Cambricon and SMIC with protected demand, and with customers told to pass on a better product [5]. If the report fizzles, or the US tightens instead, Crypto Briefing expects the stocks to move the other way [12].
US policy has now hit Chinese listings from both directions. The August losses at optical module makers followed import bans, a tightening that landed on Chinese exporters [6]. The H200 reports point to a loosening, and it lands on Chinese import substitutes [3].
I think the substitution reading is right about the direction and unproven on the size. The counter-thesis is ordinary tech selling. The CSI 300 fell 8.6% in July, its worst month in a decade [7], Chinese equities sit at a one-year low [13], and the same account cites OpenAI's pause as a second pressure on chip stocks [4]. The first formal US word on H200 access should separate the two. If Cambricon and SMIC then fall well past the CSI 300 on a day with no other chip news, the substitution case holds. If they move with the index, the September 27 gap belonged to the wider selloff.
What to watch
- Any procurement mandate for domestic chips from China's Ministry of Industry and Information Technology; Crypto Briefing names such a directive as a possible floor for Cambricon and SMIC.
- Details on OpenAI's reported pause on frontier model work and when it ends, to gauge how much of the Asian chip selling it explains.