Multiple Optical Chip Stocks Hit Daily Limit Down on First Trading Day After Holiday, Hit by Policy Concerns and Price Cut Rumors
nashnova research
On the first trading day after China's National Day break, Yuanjie Tech, Changguang Huaxin, and Dongshan Precision all hit the 20% limit-down. The optical-chip index fell over 5% — FCC regulatory rumors and 1.6T pricing fears delivered a double blow to sector confidence.
How bad was the damage, and who got hit hardest?
Three optical-chip stocks locked at the 20% limit-down on October 8: Yuanjie Tech (源杰科技), Changguang Huaxin (长光华芯), and Dongshan Precision (东山精密). Shijia Photon fell over 16%; Yongding shares dropped more than 7%.
The optical-chip index sank over 5% in a single session, among the worst-hit sub-sectors on the post-holiday open.
This means → the sell-off was not broad-based but laser-focused on the core names in the optical-chip supply chain — panic was highly concentrated.
What did the FCC regulatory rumor actually say?
The trigger was a Morgan Stanley research note published on October 1, based on its strategy team's discussions with a Washington-based legal team.
The note concluded that potential FCC restrictions on Chinese-made optical modules would most likely start at the 3.2T generation and roll out in phases. It also flagged a possible "U.S. content exemption" — products could still enter the U.S. market if American-company value accounts for 65% of the bill of materials.
In plain terms = the FCC has not issued any ban. An investment bank speculated on what restrictions *might* look like, using the word "potential" throughout — but the note fermented over the holiday, and the market traded it as a done deal.
What about the 1.6T price-cut rumor?
A second piece of negative news circulated during the break: 1.6T optical-chip pricing is under pressure, raising fears that the next-generation product could face a price war before it even ramps.
This means → the two headlines created a "double strike" — overseas market access may narrow on one side, while domestic product pricing may slide on the other, squeezing profit expectations from both ends.
Either headwind alone might be digestible. Both landing at once shattered short-term confidence in the sector.
Does the panic match the facts?
Morgan Stanley's source material was not an official FCC document — it came from the bank's conversations with lawyers, and the language throughout was hedged with "potential."
This reflects a market that, starved of information over a long holiday, gave a vague signal the worst possible reading — the panic already exceeds the certainty of the news itself.
In plain terms = no formal regulatory action has landed. The limit-downs were driven more by sentiment than by any change in fundamentals. The key watch-point now is whether the FCC actually moves to draft rules.
市场有风险，内容仅供研究参考，不构成投资建议。