Yangtze Optical Fibre and Cable
Vertically integrated manufacturer (preform -> fiber -> cable) selling via carrier tenders (China Mobile/Telecom/Unicom), international carriers and datacenter operators; growing mix of specialty fiber, hollow-core fiber and optical interconnect products (optical modules and components contributed roughly 20% of FY2025 revenue per results coverage); overseas 42.7% of FY2025 revenue
Earnings, margins, COGS & capex
FY2025 (reported 2026-03-27): revenue CNY 14.25B, +16.9%, attributable net profit CNY 814M, +20.4% (ex-items net profit CNY 516M, +40.6%), gross margin up 3.4pts to 30.7%, overseas revenue CNY 6.09B (+47.8%, 42.7% of total). This follows a cyclical trough FY2024 (revenue CNY 12.20B, -8.7%; attributable net profit CNY 676M, roughly -48%). Momentum accelerated sharply into 2026: Q1 2026 revenue CNY 3.70B (+27.7%) with attributable net profit CNY 495M (+226.4% YoY, +43% QoQ) as fiber pricing recovered (China G.652D spot prices +418% YoY as of Mar 2026 per UBS) and AI-datacenter/hollow-core demand kicked in. Earnings are small relative to the ~CNY 309B blended market cap - the stock is priced for a multi-year hollow-core supercycle, not current profits.
Income statement — where each revenue dollar goes
% of revenueOf every $1 of revenue, ~69¢ is cost of goods and ~25¢ operating expense, leaving ~6¢ of operating profit (~6¢ net).
Revenue trend
Margins
up from 27.3% FY2024; fiber price recovery + specialty/hollow-core mix
rising fast - Q1 2026 net margin ~13.4% on operating leverage
UBS models 24.3% (2026E) and 32.9% (2027E) on hollow-core mix
COGS structure
Dominated by synthetic quartz tube/preform inputs (silicon tetrachloride, germanium tetrachloride), helium for fiber draw, energy, and cable materials (polymers, steel/aramid). Vertical integration into preform (PCVD process heritage) is the key COGS advantage vs cable-only peers; hollow-core fiber carries far higher ASP and margin than commodity G.652 fiber (the 2025 Guangdong Mobile award priced hollow-core at roughly CNY 36k per core-km).
Capex
Exact FY2025 capex not disclosed in sources reviewed. Direction is clearly up: hollow-core capacity expansion in Wuhan (10,000+ core-km cumulative delivery announced Jun 2026; world-record 91.2km single-preform draw indicates scaled production), plus overseas plants supporting 42.7% international revenue.
Latest earnings
No formal consensus beat/miss convention for A/H China listings; results ran well ahead of sell-side models, and UBS published a profit-upswing call (Mar 2026)
Company does not issue formal numeric guidance; UBS models revenue CNY 21.1B (2026E) growing to CNY 33.7B (2030E) and net profit CNY 4.1B (2026E) to CNY 8.5B (2030E)
- FY2025 revenue
- CNY 14.25B, +16.9%
- FY2025 attributable net profit
- CNY 814M, +20.4%
- FY2025 gross margin
- 30.7% (+3.4pts)
- Q1 2026 attributable net profit
- CNY 495M, +226.4% YoY
- Hollow-core fiber delivered (cumulative, announced 2026-06-24)
- >10,000 core-km
- Overseas revenue share (FY2025)
- 42.7%
Growth drivers
- Hollow-core fiber commercialization — HollowBand brand launched at MWC Barcelona 2026 with world-record 0.04 dB/km attenuation; 10,000+ core-km delivered and 13+ commercial/pilot projects announced at MWC Shanghai (2026-06-24) - broadest commercial hollow-core deployment globally, with an INFINITE-2030 target of 50+ commercial projects
- AI datacenter interconnect demand — AWS has disclosed production hollow-core deployments connecting ~10 core datacenters, and Microsoft announced 15,000 km of hollow-core fiber for Azure at Ignite (Nov 2024) on a ~two-year rollout - category validation that pulls the whole hollow-core supply chain
- China carrier hollow-core tenders — exclusive winner of Guangdong Mobile's first commercial hybrid G.652D + hollow-core procurement (CNY 5.51M, 152 hollow core-km, serving a Shenzhen-HKEX low-latency link); partner on China Telecom's 100km+ cross-border commercial hollow-core line - the world's longest; follow-on provincial tenders emerging (e.g. Ningxia Mobile, 492 fiber-km, Sept 2025)
- Conventional fiber price upcycle — China G.652D spot prices +418% YoY as of Mar 2026 (UBS) as AI-driven demand tightened global supply after years of overcapacity
- Mix shift to optical modules/components (~20% of FY2025 revenue per results coverage) and specialty fiber (multimode for intra-datacenter, submarine, sensing)
- Overseas expansion: international revenue 42.7% of FY2025 total, +47.8% YoY, growing far faster than domestic
Bull & bear
YOFC is the company with the broadest commercial hollow-core fiber deployment in the world today, sitting on top of the largest fiber demand shock since FTTH: AI datacenter interconnect. If hollow-core follows the adoption curve hyperscalers are signaling, YOFC converts technology leadership plus preform-scale cost advantage into a multi-year, high-margin supercycle.
- Category validation is real and external: AWS has production hollow-core links connecting ~10 datacenters, Microsoft announced 15,000 km for Azure (Ignite, Nov 2024) and is scaling manufacturing - the medium is going mainstream
- YOFC holds the measurable technical lead among merchant suppliers: 0.04 dB/km world-record attenuation, 91.2km single-draw record, and 10,000+ core-km actually delivered across 13+ projects - manufacturing at scale is the moat in fiber, and YOFC has decades of preform process depth
- Earnings inflection is already visible, not just narrative: Q1 2026 attributable net profit +226.4% YoY, gross margin +3.4pts in FY2025, China G.652D spot prices +418% YoY (Mar 2026, UBS)
- UBS path to CNY 4.1B net profit in 2026 and CNY 8.5B by 2030 with EBIT margin expanding from 11.4% (2025) to 24.3% (2026E) and 32.9% (2027E) - hollow-core ASPs are multiples of commodity fiber
- Exclusive early wins on China's flagship hollow-core routes (Guangdong Mobile's first commercial procurement, the 100km+ cross-border China Telecom line, the Shenzhen-HKEX trading link) lock in the home market, the world's largest fiber market by volume
- Optionality beyond telecom: submarine, sensing, specialty fiber, optical modules (~20% of revenue) diversify the cycle; the Jun 2026 1.2 Tb/s single-wave unrepeatered record (51.3 Tb/s over 206.5km) keeps YOFC setting the spec agenda
The stock prices a hollow-core near-monopoly YOFC is unlikely to keep. Today's earnings are a small fraction of the market cap, the highest-value customers (US hyperscalers) face structural barriers to buying Chinese fiber, and the core business remains a brutal commodity cyclical that lost nearly half its profit as recently as FY2024.
- Valuation: ~CNY 309B blended market cap vs CNY 814M FY2025 attributable net profit (~380x trailing); even on UBS's aggressive 2026E of CNY 4.1B it is ~75x forward - and ~155x annualized Q1 2026 earnings. Any adoption slip is a violent de-rate
- The Western hollow-core market may be closed to YOFC: Microsoft deploys its own Lumenisity/DNANF fiber and contracted Corning, Heraeus and HUBER+SUHNER in 2026 to mass-produce it, EU anti-dumping duties of 39.4%-88% already wall off Europe, and US hyperscaler procurement of Chinese fiber for core infrastructure is a hard sell politically - AWS/Azure deployments validate the category, not YOFC as supplier
- Hollow-core revenue today is tiny: the flagship Guangdong Mobile award was CNY 5.51M; 10,000 core-km at tender ASPs around CNY 36k per core-km is on the order of a few hundred million CNY cumulative - the gap between narrative and P&L is years wide
- Commodity DNA: FY2024 (revenue -8.7%, attributable net profit roughly -48%) shows what happens when Chinese fiber pricing rolls over; a +418% YoY spot price spike historically triggers capacity response from Hengtong, ZTT, FiberHome and price collapse
- A/H premium of ~225% on the Shanghai line implies speculative retail froth; the H-line has already run roughly 10x in 12 months (~95x TTM P/E) and sits ~45-50% below its 2026 peak - reflexive downside if momentum breaks
- China carrier capex is structurally declining post-5G; the domestic base business shrinks while the growth story matures
What it is worth
Multiples on reported and forecast earnings (blended A+H market cap ~CNY 309B / ~$43B, early Jul 2026; H-line quote basis ~HKD 271B / ~$35B per stockanalysis.com); cross-checked against UBS's published forecast path (2026E revenue CNY 21.1B, net profit CNY 4.1B; 2030E revenue CNY 33.7B, net profit CNY 8.5B; EBIT margin 11.4% 2025 -> 24.3% 2026E -> 32.9% 2027E)
Fiber price spike triggers domestic capacity response, hollow-core adoption slips to late decade, trade barriers cap overseas margin; earnings settle near CNY 1.5-2B and the multiple compresses to 20-25x -> ~CNY 30-50B value, 80%+ downside from the blended cap, concentrated in the A-line
Strong multi-year growth (revenue toward UBS's CNY 21B in 2026 and ~CNY 25-30B by 2028, net margin mid-to-high teens) but Western hollow-core supply goes to Microsoft/Corning captive production and Chinese fiber pricing normalizes; ~25-35x mid-cycle earnings of CNY 3-4B implies ~CNY 75-140B fair value - materially below the current blended cap, roughly in line to below the H-share-implied value
Hollow-core becomes the standard medium for AI interconnect and premium long-haul, YOFC holds global commercial leadership and hits/exceeds UBS's 2030 path (CNY 8.5B+ net profit, ~33% EBIT margin); 30-40x 2030 earnings supports roughly CNY 255-340B, sustaining today's blended cap with upside on the H-line if the A/H gap narrows upward
Trailing multiples are extreme on any basis: ~380x FY2025 attributable net profit on the blended cap, ~95x TTM P/E on the H-line per stockanalysis.com (2026-07-10), ~22x FY2025 sales. Even annualizing the blowout Q1 2026 (~CNY 2B run-rate net profit) gives ~155x blended. The market is capitalizing hollow-core leadership plus a fiber price supercycle years ahead of the P&L. The ~225% A/H premium means the two listings imply very different valuations for the same claim - the H-line is the more defensible reference. Not financial advice.
SWOT
Strengths
- World #1 in optical preform, fiber and cable shipments with full preform-to-cable vertical integration (PCVD process heritage from the Philips/Draka JV lineage)
- Clear early lead in commercial hollow-core fiber — record 0.04 dB/km attenuation, 91.2km single-draw record, 10,000+ core-km delivered across 13+ projects - most commercially deployed hollow-core supplier globally
- Entrenched supplier position in China carrier tenders (China Mobile, China Telecom, China Unicom) including exclusive early hollow-core wins
- Diversified beyond commodity fiber — specialty fiber, submarine cable, optical modules/components (~20% of revenue), sensing
- Improving financials: gross margin 30.7%, roughly doubled operating cash flow, accelerating revenue
Weaknesses
- Thin absolute profitability for the valuation — FY2025 attributable net profit only CNY 814M against a ~CNY 309B blended market cap
- Legacy business is a commodity cyclical — FY2024 showed -8.7% revenue and roughly -48% attributable profit in the downcycle
- Hollow-core revenue is still small (early commercial projects, single-digit-million-CNY tender sizes like the CNY 5.51M Guangdong Mobile award) relative to expectations priced in
- Heavy dependence on Chinese carrier capex, which is structurally slowing post-5G rollout
- Extreme A/H price divergence (~225% A-share premium as of early Jul 2026) signals speculative retail positioning in the Shanghai line
Opportunities
- Hollow-core fiber becoming a default medium for AI datacenter interconnect and latency-sensitive long-haul (AWS and Microsoft deploying in production; other hyperscalers evaluating the category)
- AI computing centers driving strong multi-year growth in fiber demand through 2030 (UBS/press industry estimates)
- Global supply tightness sustaining fiber price recovery after a decade of Chinese overcapacity
- Overseas expansion (42.7% of revenue, +47.8% YoY) into markets with local production to route around trade barriers
- Financial/HFT corridors (e.g., the Shenzhen-HKEX ~1ms cross-border trading link YOFC already serves) as a high-ASP hollow-core niche
Threats
- Western market access — EU anti-dumping duties on Chinese optical fiber cable were raised to 39.4%-88% in the 2023 anti-absorption ruling; UK and US trade remedies in place - the richest hollow-core market (US hyperscalers) may be largely closed to Chinese fiber on security and procurement grounds
- Microsoft owns hollow-core maker Lumenisity and in 2026 contracted Corning, Heraeus and HUBER+SUHNER to scale its DNANF hollow-core production - Western AI datacenter demand may be met almost entirely by non-Chinese supply
- Valuation air pocket if hollow-core adoption or pricing disappoints (H-share up roughly 10x over 12 months and already ~45-50% below its 2026 peak near HKD 305)
- China telco capex decline resuming once the current AI-network build normalizes
- US-China tech escalation (export controls, procurement bans, tit-for-tat duties such as China's Sept 2025 fiber ruling) hitting either input equipment or end-market access
Moats, dependencies & bottlenecks
Moats
Preform-to-cable vertical integration and process IP (PCVD lineage) Preform is the hard, capital- and know-how-intensive step; YOFC is world #1 and cost leader
contested Record attenuation and the broadest commercial deployment, but Microsoft/Lumenisity with Corning, Heraeus and HUBER+SUHNER manufacturing, plus OFS, are credible fast scalers
Scale and share leadership (#1 global fiber/preform/cable shipments) Scale economies matter in a commodity; does not protect pricing in downcycles
Decades-long qualified-supplier positions with China Mobile/Telecom/Unicom; exclusive early hollow-core route wins
1.2 Tb/s single-wavelength unrepeatered and 51.3 Tb/s single-span WDM records (Jun 2026) shape carrier specs in YOFC's favor
Dependencies
China Telecom, China Unicom) Core revenue base; structurally slowing post-5G, currently offset by AI-network builds
AI datacenter buildout pace (hyperscaler and Chinese computing-center capex) The entire re-rating rests on this demand persisting
SiCl4, GeCl4, He) Helium and high-purity quartz are concentrated supply chains (Heraeus, Shin-Etsu, industrial gas majors)
EU duties 39.4%-88% (2023 anti-absorption ruling); UK/US measures; mitigated partly by overseas plants
Hengtong/ZTT/FiberHome capacity responses have historically crushed price upcycles
Advantages
- Broadest commercial hollow-core deployment globally (13+ projects, 10,000+ core-km delivered) - reference-customer flywheel
- World-record product specs (0.04 dB/km attenuation — 91.2km single draw; 1.2 Tb/s single-wave unrepeatered transmission; 100km+ longest commercial hollow-core line)
- Lowest-cost integrated preform base to fund the hollow-core push through commodity cycles
- Home-market scale: China is the largest fiber market and is funding first-mover hollow-core routes
- 42.7% overseas revenue (+47.8% YoY) with local manufacturing footprint softening trade barriers
Weaknesses
- Profit base (CNY 814M attributable, FY2025) is tiny relative to valuation - execution must be near-perfect for years
- Exposure to commodity fiber pricing that has whipsawed revenue and profit within the last 24 months
- Geopolitical ceiling on the most valuable customer set (US hyperscalers) for a Chinese state-linked supplier
- Net margin (~5.7% FY2025) still far below what the multiple implies must materialize
- A/H structure with an extreme premium invites volatility and index/flow distortions
Bottlenecks
- Hollow-core fiber yield and draw-length scaling — producing thousands of route-km at consistent 0.04-0.1 dB/km is the industry-wide constraint (YOFC's deployed commercial cable runs at ~0.09 dB/km)
- Helium and high-purity synthetic quartz availability for fiber draw at expanded volumes
- Qualification cycles — carriers and datacenter operators require multi-quarter field trials before volume hollow-core orders
- Trade-barrier-driven need to localize production for EU/US demand, which takes years of capex
- Splicing, connectorization and test ecosystem for hollow-core is immature, slowing deployment velocity industry-wide
Top signals & trends
Top signals
Earnings inflection confirming the upcycle, not just narrative
But historically mean-reverting once domestic capacity responds
bullish for the category · Validates hollow-core; supplier identity for Western builds is largely non-Chinese
Manufacturing scale-up is real and ahead of merchant peers
Momentum/froth risk; priced for flawless execution; H already ~45-50% off its 2026 peak
Structural cap on high-margin Western cable revenue
Sell-side is underwriting the supercycle; consensus risk if it slips
Trends
Computing centers replace FTTH/5G as the marginal buyer
strongly positive · YOFC has the broadest commercial deployment; contested by Microsoft/Lumenisity (manufactured by Corning, Heraeus, HUBER+SUHNER) and OFS
Bifurcates the global market along bloc lines; YOFC keeps China + Global South, loses much of the premium West
positive near-term · All-optical network and 400G/800G backbone upgrades favor fiber suppliers
Complements YOFC's module/component segment (~20% of revenue)
negative later-cycle · Classic Chinese fiber cycle: price spike -> capacity add -> glut
Ecosystem & competitor graph
Suppliers feed the company; customers pull from it. Line thickness shows the strength of each tie (supply-chain dependency, customer earnings contribution). Hover to isolate a tie.
Synthetic quartz tube/substrate for preform; private German group - also named a Microsoft hollow-core manufacturing partner in 2026
High-purity quartz/silicon precursors; also a competitor in preform
Helium and process gases essential to fiber draw
Industrial/specialty gas supply
Largest fiber tender buyer globally; Guangdong Mobile awarded YOFC the exclusive first commercial hybrid G.652D + hollow-core procurement (CNY 5.51M, 2025), serving a ~1ms Shenzhen-HKEX trading link; provincial follow-ons (e.g. Ningxia Mobile, 492 fiber-km, Sept 2025)
Partner on the world's longest cross-border commercial hollow-core line (100km+) and the Jun 2026 1.2 Tb/s single-wave unrepeatered trial
Long-standing collective-tender customer for conventional fiber and cable
International carriers and datacenter operators 13+ hollow-core commercial/pilot projects at home and abroad; overseas 42.7% of total revenue
Global fiber/preform leader in the West; contracted in 2026 to mass-produce Microsoft's DNANF hollow-core fiber; hit by China's 37.9% anti-circumvention duty (Sept 2025) domestically but dominant for US hyperscaler supply
Acquired hollow-core pioneer Lumenisity (2022); the 15,000 km Azure deployment is captive supply now scaled via Corning/Heraeus/HUBER+SUHNER - removes the richest customer from YOFC's addressable market
World's largest cable maker (absorbed Draka, YOFC's original technology partner); strong in EU/US carrier and datacenter cable
OFS has a long-running hollow-core R&D program and US manufacturing; strong specialty fiber position; OFS Fitel hit by China's Sept 2025 duty (33.3%)
Japanese fiber/cable and fusion-splicer leader riding the same AI datacenter cycle
Ultra-low-loss submarine and terrestrial fiber leader; premium long-haul segments
US connectivity/cable for datacenters and broadband
Largest domestic Chinese rival across fiber/cable/submarine (context only)
Domestic fiber/cable/submarine competitor (context only)
State-owned domestic fiber and telecom-equipment rival (context only)