Zhongfu Circuit (300814) is a PCB manufacturing company.
Today, the company’s stock hit the limit up20%, marking atwo-day consecutive limit up.
The reason for the surge is clear.
The core catalyst is thesustained explosion in AI computing power demand.
Recently, NVIDIA’s financial report performed well, with strong demand for AI chips, directly boosting the entire PCB sector.
Zhongfu Circuit leads the surge due to its differentiated advantages.
It is not only a PCB manufacturer but also possessesthe processing capability for optical module PCBs.
Optical modules are core components of AI servers and data centers, with high technical barriers and added value.
The logic behind Zhongfu Circuit’s consecutive limit up lies here.
Follow me for continuous tracking of investment opportunities in the semiconductor supply chain!
1. Why the limit up
1.1 Limit up characterization: Industry prosperity + Technical positioning
First, let’s characterize:Industry prosperity + Technical positioning.
Zhongfu Circuit belongs to thePCB supply chain, primarily engaged in the research, production, and sales of printed circuit boards.
This two-day consecutive limit up is a typical combination of “industry trend + technical barriers”.
Industry trend:Explosion in AI computing power demand.
Technical barrier:Processing capability for optical module PCBs.
From a risk perspective, it is consideredmedium to high risk.
The industry trend is certain; AI computing power demand is indeed growing.
The uncertainty lies in the orders; whether the trend can be converted into performance still needs observation.
1.2 Catalyst: NVIDIA’s financial report ignites the AI supply chain
The logic behind Zhongfu Circuit’s limit up is very clear.
It is positioned at a critical link in theAI computing power supply chain.
The logical chain is clear:
Step 1: NVIDIA’s financial report ignites AI computing power demand.
Recently, NVIDIA’s financial report performed well, and market expectations for AI chip demand continue to rise.
A massive shipment of AI chips needs to be installed in AI servers, data centers, and high-end computing devices.
Step 2: AI devices require high-end PCBs.
The stronger the computing power of AI chips, the higher the performance requirements for PCBs.
Signal transmission speed, heat dissipation performance, and multilayer board design are all technical barriers.
Zhongfu Circuit’s products include single-sided boards, double-sided boards, and multilayer boards, with multilayer boards being representative of high-end PCBs.
Step 3: Optical module PCBs represent a higher barrier.
AI servers and data centers require not only motherboard PCBs but alsooptical modules.
They are responsible for the conversion of optical and electrical signals, processing high-speed data transmission.
High-end PCBs are required inside, with technical requirements higher than ordinary PCBs.
Zhongfu Circuit possessesthe processing capability for optical module boards.
In the field of optical modules, the company has four core technologies independently developed, three of which have already been patented.
The technical barriers have filtered out the beneficiaries, and Zhongfu Circuit is one of them.
Summary of the conduction path:NVIDIA’s financial report → AI chip shipments → Server construction → Optical module demand → Optical module PCB demand → Zhongfu Circuit benefits.
1.3 Sustainability assessment: Order realization is key
Can the limit up be sustained?
The core factor isorders.
The PCB industry is typically order-driven; no matter how large the demand, if orders are not secured, it is futile.
Whether Zhongfu Circuit can sustain this depends on three levels:
Short-term sentiment: How long can the heat from NVIDIA’s financial report last?
Mid-term orders: Can they secure bulk orders from major clients, and can performance be realized?
Long-term technology: Can the optical module PCB technology be scaled, and can the four core technologies maintain competitive barriers?
The trend is certain, but orders are uncertain.
AI computing power demand is indeed exploding, but how much benefit Zhongfu Circuit can reap depends on the subsequent order realization.
Since the market has given a two-day consecutive limit up, it indicates recognition of this logic.
Next, we will look at the company’s fundamentals and whether it has the strength to meet this wave of demand.
2. How is the company?
With the limit up logic clarified, let’s examine the company’s fundamentals.
2.1 Business model: PCB manufacturing + Optical module technology
Zhongfu Circuit is engaged in PCB manufacturing, which refers to printed circuit boards.
All electronic products require PCBs; mobile phones, computers, servers, and communication devices all rely on them.
Zhongfu Circuit mainly produces three types of products:single-sided boards, double-sided boards, and multilayer boards.
Single-sided and double-sided boards are basic products with low technical barriers and low profits.
Multilayer boards are high-end products with high technical barriers and high added value.
The core highlight of this limit up is theoptical module board.
It is a core component of optical communication, responsible for the conversion of optical and electrical signals.
5G base stations, data centers, and servers all require optical modules.
High-end PCBs are needed inside.
Zhongfu Circuit possesses the processing capability for optical module boards and has technical accumulation in this niche field.
2.2 Market position: PCB manufacturer with technical accumulation in optical modules
Zhongfu Circuit is not considered an absolute leader in the PCB industry.
The PCB industry is highly competitive, with many domestic and foreign manufacturers.
With a market capitalization of 14.5 billion, Zhongfu Circuit is of medium size in the industry.
However, the company has technical accumulation in theoptical module PCB niche field.
It possesses four core technologies for optical module boards, three of which have already been patented.
This indicates that the company has a certain technical barrier in the high-end PCB field.
The technical requirements in this niche field are very high.
It is necessary to ensure the stability of high-frequency signal transmission, with strict requirements on materials, processes, and manufacturing.
Manufacturers capable of producing optical module PCBs will not have weak technical strength.
2.3 Competitive advantages: Technical accumulation + Positioning in niche markets
Zhongfu Circuit’s ability to produce optical module PCBs relies on two points.
First,technical accumulation.
The company has been deeply involved in the PCB field for many years, with a profound understanding of materials, processes, and manufacturing.
Optical module PCBs are high-end products with high technical barriers.
The company has four core technologies and three patents, indicating that its technical accumulation is solid.
Second,positioning in niche markets.
This is a relatively niche market.
The market size is not large, but the technical barriers are high, and the added value is also high.
There are not many manufacturers capable of producing them, and competition is relatively less intense.
The third point isgrowing downstream demand.
5G, 6G, high-end computing, and AI servers all require optical modules.
Growing demand directly drives the need for optical module PCBs.
With the technology in place, where are the orders?
The PCB industry is order-driven; ultimately, it depends on whether they can secure orders from major clients.
Having analyzed the company’s fundamentals, it has technical accumulation and positioning in niche markets.
But there is still a question:Why has the company only recently received a two-day consecutive limit up despite having technology??
This requires breaking down the investment logic and understanding the complete path of industry chain transmission.
3. Investment logic breakdown
From three dimensions, let’s see why the market is optimistic about Zhongfu Circuit:
3.1 Industry chain transmission: The complete path from AI chips to optical module PCBs
The reason for the recent two-day consecutive limit up is thatthe industry chain transmission path has finally been established.
Let’s break down the complete transmission logic:
First layer: NVIDIA’s financial report proves that AI computing power demand is real.
Previously, the market had doubts about AI computing power demand, fearing it was just hype.
Recently, NVIDIA’s financial report performed well, providing actual performance data to prove the authenticity of AI chip demand.
The financial report data dispelled market doubts, confirming the first link in the industry chain transmission path.
Second layer: Growth in AI chip shipments directly drives server and data center construction.
AI chips are not sold separately; they need to be installed in servers.
How many PCBs does an AI server require? Motherboard PCBs, expansion board PCBs, optical module PCBs.
This is the first wave of growth in PCB demand.
Third layer: Explosive demand for optical modules due to high-end computing.
The biggest difference between AI servers and traditional servers is the extremely high requirements for data transmission speed.
This necessitatesoptical modules.
Optical modules are responsible for high-speed data transmission and are core components of AI servers and data centers.
5G/5.5G/6G communication, high-end computing, and servers all require optical modules.
Growing demand directly drives the need for optical module PCBs.
Fourth layer: The technical barriers of optical module PCBs filter out beneficiaries.
Not all PCB manufacturers can produce them.
It is necessary to ensure the stability of high-frequency signal transmission, with strict requirements on materials, processes, and manufacturing.
Zhongfu Circuit has four core technologies and three patents, possessing the processing capability for optical module boards.
The technical barriers have filtered out the beneficiaries.
The industry chain transmission path: NVIDIA’s financial report → AI chip shipments → Server construction → Optical module demand → Optical module PCB demand → Zhongfu Circuit benefits.
Each layer of transmission has logical support; it is not mere talk.
3.2 Technical barriers: Why optical module PCBs are high-value-added businesses
With the industry chain transmission path established, let’s see if Zhongfu Circuit can benefit from this wave.
This niche field is not something just anyone can do.
Let’s look at how high the technical barriers are:
Technical difficulty 1: High-frequency signal transmission.
It is necessary to ensure the stability of high-frequency signal transmission.
The higher the frequency, the stricter the requirements for PCB materials, trace design, and impedance control.
Any deviation can lead to signal distortion.
Technical difficulty 2: Process precision.
Line width and spacing requirements are extremely high.
Ordinary PCBs may have precision in the tens of micrometers, while optical module PCBs must achieve even higher precision.
This poses a significant challenge to the manufacturing process.
Technical difficulty 3: Material selection.
Special substrates are required, balancing signal transmission and heat dissipation performance.
Material costs are high, and the complexity of the process is also high.
Zhongfu Circuit hasfour core technologies independently developed, three of which have already been patented.
Patents serve as a protective barrier; there are not many manufacturers capable of producing optical module PCBs, and competition is relatively less intense.
This is a high-technical-barrier, high-value-added niche market, and Zhongfu Circuit has technical accumulation.
With the technology in place, where are the orders?
3.3 Order realization: What is still needed from technology to performance
With the industry chain transmission path clear and technical barriers in place, let’s look at the orders.
Where do the orders come from?
Three possible sources:
Order source 1: Existing customer expansion.
Zhongfu Circuit has been deeply involved in the PCB field for many years and certainly has a stable customer base.
If existing customers expand orders due to increased AI computing power demand, this is the most direct path to performance growth.
Uncertainty: How large is the order scale from existing customers? How much growth potential is there?
Order source 2: New customer acquisition.
This is a niche market, with relatively concentrated downstream customers.
If they can secure orders from leading customers, performance will see a qualitative leap.
Uncertainty: The supply chain certification cycle for major customers is long; can they enter the supply chain system?
Order source 3: New application scenarios.
In addition to AI servers, 5G/5.5G/6G communication and high-end computing devices also require optical module PCBs.
If these application scenarios explode, orders will also grow.
Uncertainty: How fast is the demand growth in these scenarios?
The PCB sector overall rose by 0.45% today, while Zhongfu Circuit hit the limit up at 20%.
The market has already set expectations, believing that orders will grow.
Expectations are not performance.
The two-day consecutive limit up indicates high market sentiment.
If there are subsequent announcements of large customer orders, the stock price may have further room to grow.
If it is merely sentiment-driven speculation without order realization, the heat will quickly dissipate.
The industry chain transmission path is clear, and technical barriers do exist, but order realization is the ultimate test.
4. Conclusion
Summary from three dimensions:
Zhongfu Circuit’s investment logic: Industry chain transmission + Technical barriers + Order expectations.
Logical highlights: The industry chain transmission path is clear
The two-day consecutive limit up has logical support.
NVIDIA’s financial report → AI chip shipments → Server construction → Optical module demand → Optical module PCB demand, each layer of transmission has logical support.
Zhongfu Circuit is positioned at a critical link in theAI computing power supply chain.
The industry trend is real, not hype.
Technical highlights: Optical module PCBs have barriers
Four core technologies, three patents.
High technical barriers: high-frequency signal transmission, process precision, material selection, each of which is a test.
There are not many manufacturers capable of producing optical module PCBs, and Zhongfu Circuit has a protective moat.
Technical barriers are real, and the competitive landscape is relatively friendly.
Risk warning: Orders are the biggest uncertainty
No matter how good the logic or strong the technology, if orders are not secured, it is futile.
The PCB industry isorder-driven, and performance entirely depends on orders.
How many orders can Zhongfu Circuit secure? Can they enter the supply chain of major customers? The biggest uncertainty lies here.
The market has already set expectations (20% limit up), whether these expectations can be realized depends on subsequent order announcements.
Operational strategy: Layered judgment
Short-term (1-2 weeks): Observe how long the heat from NVIDIA’s financial report can last and monitor market sentiment.
Mid-term (1-3 months): Monitor order realization; announcements of large customer orders are the hard logic.
Long-term (6-12 months): Observe whether optical module PCB technology can be scaled and whether the positioning in the industry chain can be solidified.
Risk level: Medium to high risk.
The industry trend is certain, technical barriers exist, but order uncertainty is high.
In conclusion, to summarize in one sentence:
Zhongfu Circuit is well-positioned, has technical barriers, but whether it can reap the benefits depends on orders.
This is the logic behind Zhongfu Circuit.
Portal:Daily Must-Read: 
Interpretation of Daily Important Events「Important events, tracking opportunities, analysis」DehydrationResearch Report:
Dehydrated Research Report「Dehydrated announcements, dehydrated research reports, limit up revelations」