Why have fiber optic bidding prices increased by over 100% in 4 months? | 0330

This image is AI-generated

1. Daily Market Analysis

2. Market Observations

On March 30, 2026, China’s A-shares overall showed a pattern of bottoming-up rebound and differentiation with volatile consolidation. The Shanghai Composite Index closed at 3,923.29 points, up 0.24%; the Shenzhen Component Index closed at 13,726.19 points, down 0.25%; and the ChiNext Index closed at 3,273.36 points, down 0.68%.

Turnover across both Shanghai and Shenzhen was about 1.92 trillion yuan, an increase of roughly 62.6 billion yuan versus the previous trading day. More than 2,800 stocks across the market rose, 76 hit the daily limit-up, and 16 hit the daily limit-down. Market hotspots rotated quickly, and overall the market saw more gains than losses.

Analysis of theme stocks with consecutive limit-ups

The pharmaceutical sector’s Minuowai (7 days, 6 limit-ups) became the market’s highest-popularity benchmark. In the commercial aerospace concept, Shenjian Co., Ltd. broke out with 3 consecutive limit-ups. In the fiber-optic concept, Zhongli Group achieved 7 days, 5 limit-ups. Market funds mainly gathered around five theme directions: pharmaceuticals, commercial aerospace, fiber optics, nonferrous metals·aluminum, and glass fiber.

Analysis of trend stock themes

Trend stocks concentrate in sectors with stronger earnings certainty and medium- to long-term industrial logic support. Compared with the short-term games of consecutive limit-up stocks, trend stocks place more emphasis on fundamental validation, aligning with the institutional funds’ layout idea of “waiting through the concentrated period of April earnings releases.”

2. Middle East Situation

3. Major Launch in Domestic Semiconductors!

In the last week of March 2026, at the Shanghai New International Expo Centre, SEMICON China 2026 set new historical records with data from 1,500 exhibitors, 180,000 professional visitors, and more than 5,000 booths—refreshing the historical record.

4. Fiber-optic bidding prices surge

Recently, Heilongjiang Telecom issued an emergency procurement notice, directly pushing the single-fiber-per-kilometer price of G.652.D24 core fiber cable to 155.7 yuan (including tax 130 yuan). This price is up as much as 178% from the bottom in November 2025; compared with the bidding price of Tianjin Telecom in the same period, it has surged even more by 239%.

Not only that—fiber-optic price increases have appeared one after another nationwide. According to reports, Guangdong Telecom’s GYTA-24 core fiber cable was 1,245 yuan per fiber-length kilometer (skin-per-length) in January, but in March it doubled directly to 2,500 yuan.

Chongqing Telecom was even more extreme: after a round of bidding that involved three pricing adjustments, the deal was finally reached—rising from 218 yuan all the way to 350 yuan per skin-length kilometer, a 60% increase.

Meanwhile, the spot price of ordinary single-mode optical fiber rose more than 4x compared with the end of last year, and prices of high-end specialty optical fibers also broke through historical peaks.

From the demand side, the demand structure in the fiber-optic industry is undergoing fundamental change.

In the past, the industry relied mainly on demand from telecom operators; now it is driven jointly by AI data centers, overseas markets, specialty scenarios, and domestic new infrastructure buildout, with demand growth far exceeding expectations. Especially with the boom in generative AI, fiber optics has shifted from a traditional communications consumable to a core “blood vessel” of AI computing power networks:

Traditional data centers and AI supercomputing centers have very different requirements for bandwidth and latency—completely different orders of magnitude. For a single cluster containing tens of thousands of GPU cards, internal interconnects require fiber connections on the order of hundreds of thousands; the volume used is 5 to 10 times that of traditional data centers.

Since 2026 began, in North America, Latin America, the Middle East, and Africa, fiber-optic demand has seen a collective surge, and domestic optical cable companies’ export orders have increased significantly.

Data from the Nanjing Customs shows that in the first two months of 2026, the Wujiang region exported optical cables and other products totaling 860 million yuan, up 69.3% year over year.

According to reports, for leading companies, their fiber-optic exports grew 51% year over year in the first two months. Previously they handled only around ten orders per month, but now they have to process several orders every day, with customers in South America, the Middle East, and Africa all催货 (accelerating shipments).

2. Column Recap — Jinfutek Technology

Update:

Jinfutek Technology mainly engages in R&D, production, and sales of packaging products for beverages, food, and other fields. Its core products are plastic anti-theft bottle caps. The product lines cover bottle-capped drinking water, functional beverage caps, caps for bottled drinking water, new pull-ring caps, and bottle caps for seasoning products, among others.

The company is a leader in its sub-sector. Annual sales exceed 20 billion bottle caps. Customers include well-known companies such as China Resources Yibao, Jingti, Coca-Cola, Danone, Haitian Flavoring, and Yanjing Group. -32 From the revenue structure, beverage packaging products account for about 90%, while other businesses account for about 10%; the domestic market accounts for more than 98%.

In March 2026, the company officially entered the liquid-cooling and heat-dissipation field—acquiring 51% equity interests in Zhuohui Metal and Lianyiyanneng with 571.2 million yuan in cash. Its main business expanded from bottle caps to precision structural components for liquid-cooling and heat-dissipation modules, aiming to build a second growth curve.

3. Zhongli Group — Specialty Cables + Photovoltaics

Zhongli Group currently maintains a business framework of “one body with two wings,” namely three major business segments: specialty cables + photovoltaic new energy + energy storage.

The cable business is the company’s traditional core business and “cash cow.” Its products include flame-retardant and fire-resistant soft power cables, cables for ships, high-speed-rail and railway signaling cables, cables for new energy vehicles and charging piles, liquid-cooling cables, data communication cables, cables for offshore engineering platforms, and high-end specialty cable products such as optical fiber preforms and optical fibers. In the sub-segment of flame-retardant and fire-resistant soft power cables, the company holds an absolute leading position in the industry. Customers include State Grid, China Tower, Huawei, and other leading enterprises. Its products cover high-end areas such as high-speed rail, ships, charging piles, and communications. In the first half of 2025, revenue from the cable industry was 714 million yuan, accounting for 85.29% of total revenue, with a gross margin rate of about 12.48%.

The photovoltaic business is conducted through a subsidiary, Tenghui Photovoltaics, focusing on the research, development, production, and sales of high-efficiency monocrystalline photovoltaic cells and large-size modules. Products cover both P-type and full-series N-type TOPCon components, with power ranges from 350W to 735W. The company holds a Grade II qualification for EPC general contracting of power engineering construction, enabling it to undertake EPC turnkey projects and operation and maintenance services for all types of photovoltaic power stations, establishing an integrated development strategy of “products + solar storage system + services.” In the first half of 2025, revenue from the photovoltaic industry was 90.26 million yuan, accounting for 10.78% of total revenue.

The energy storage business is a new growth point the company has planned in recent years. The company independently develops an energy storage system integration; PCS conversion efficiency reaches 97.5%, with planned energy storage capacity of 10GWh.

Although Zhongli Group, Hengtong Optoelectronics, and Changfei Optic Fiber all have exposure to the “cables” field, their business focus, technical paths, and competitive logic are fundamentally different, so their comparability is limited. Zhongli’s core battlefield is specialty cables and photovoltaic, whereas Hengtong and Changfei are global giants across the entire optical communications industry chain.

4. Technical Analysis Lecture 20 — Long Upper Shadows + Big Bullish Candle (K-line Pattern)

5. Knowledge Recap

6. Long Upper Shadows + Big Bullish Candle K-line Combination

A long upper shadow + a big bullish candle refers to: the closing price is significantly higher than the opening price (the bullish candle body is large), but during the session the price surged sharply and then retreated, leaving an upper shadow whose length clearly exceeds the body (typically the upper shadow length ≥ 1.5 times the body length), and the body’s rise is ≥ 5% (the standard for a big bullish candle).

Low-position zone (after a long decline or at a volatile base): probing signal, strong upside potential

Funds move in to push up the stock price, testing the resistance from trapped sellers above, while clearing out floating profit positions.

Mid-position zone (midway in an uptrend): consolidation signal, trend continues

Main force behavior: create a false sense of pressure by driving higher and then pulling back, clearing out profit-taking holders in preparation for the next leg higher.

High-position zone (after a sharp rise or near historical highs): bull trap signal, downside risk high

Use the opportunity of the spike to distribute shares, lift the price to unload, and the upper shadow becomes a “lightning rod.”

Summary:

Long upper shadow + big bullish candle is the “battlefield trace” of tug-of-war between bulls and bears. Its core value lies in revealing the balance relationship between overhead pressure and the strength of the bulls. Location determines nature—this is the “golden rule” for interpreting this pattern.

Special Statement:

This article includes an audio interpretation; you can consult Brother Huzi;

The stocks mentioned in the article are only for investment logic, with no buy or sell recommendations.