IQE plc
Merchant epitaxy foundry: grows III-V/wide-bandgap epitaxial wafer layers (MOCVD/MBE) on substrates for chipmakers to fabricate RF, photonic and power devices. Outsourced-epi (fab-light on the device side) supplier to RF PA houses, optical-component makers and defence primes; revenue is wafer volume x layer-stack complexity, plus development/NRE. Long-term supply agreements (MACOM, Tower) are shifting the model toward anchored, capacity-committed volume.
Earnings, margins, COGS & capex
FY2025 was a trough year: total revenue fell 17.6% to GBP97.3M as a 40% collapse in Wireless (GaAs RF epi for smartphones) overwhelmed 15% growth in Photonics. Adjusted EBITDA fell 60% to GBP3.2M and the reported pre-tax loss was GBP37.0M (broadly flat vs GBP36.9M FY2024). The story is a mix-shift: Photonics (now ~59% of revenue) is the growth engine on AI/data-centre optical + US defence, while legacy Wireless is cyclically and structurally pressured. A transformative GBP81m financing (led by strategic partner MACOM), announced April 2026 and completed in May 2026, repaid bank debt and redeemed convertible notes and funds the InP scale-up; management guides FY2026 revenue up >20% with a return to a high-single to low-double-digit-GBPm adjusted EBITDA.
Income statement — where each revenue dollar goes
% of revenueOf every $1 of revenue, ~0¢ is cost of goods and ~63¢ operating expense, leaving ~37¢ of operating profit.
Revenue trend
Margins
down from ~7% (GBP8.1M) FY2024; guided to recover FY2026
loss broadly flat vs GBP36.9M FY2024; includes exceptional/impairment items
down (capex cut GBP11.4M -> GBP5.1M) to conserve cash
COGS structure
Not itemized in the FY2025 release. Cost base is dominated by expensive III-V substrates (InP, GaAs, SiC) and precursor materials (indium, gallium, arsine/phosphine), MOCVD/MBE reactor depreciation, high-purity gases/energy, and skilled epitaxy labour across UK (Cardiff), US (Massachusetts, North Carolina) and Taiwan sites. Substrate cost and low utilization in the wireless slump are the key margin levers; the MACOM/Tower long-term supply deals aim to secure substrate access and improve volume/utilization.
Capex
GBP5.1M FY2025 (from GBP11.4M FY2024) — deliberately curtailed during the downturn; the FY2025 spend supported GaN-related capacity for power electronics and microLED per the company. Future capex is tied to InP capacity expansion for AI-optical demand, funded by the GBP81m raise.
Latest earnings
Revenue and adjusted EBITDA down sharply YoY (trough year); the balance-sheet recapitalization and >20% FY2026 growth guide were the market-moving positives — shares are up ~336% over the trailing year on the AI-optical/MACOM thesis
FY2026: revenue growth >20% YoY; adjusted EBITDA in a high-single-digit to low-double-digit GBPm range; InP/data-centre demand the core driver
- FY2025 revenue
- GBP97.3M
- Adjusted EBITDA
- GBP3.2M
- Reported pre-tax loss
- GBP37.0M
- Strategic financing
- GBP81M gross (MACOM GBP45M incl. GBP30M equity + GBP15M zero-coupon convertibles)
- MACOM stake
- ~11.5% voting (151,515,151 new shares at 19.8p)
Growth drivers
- Indium Phosphide (InP) epi for optical transceivers / co-packaged optics in AI and data-centre interconnect — the flagged material growth driver for 2026 and beyond
- MACOM long-term supply agreements + strategic relationship (with an indirectly-cited Nvidia optical supply-chain linkage) converting into anchored volume
- US defence photonics programmes (sensing, RF, optical) — H2 2025 funding releases
- GaN and microLED (GaN-on-Si) plus SiC power for EV/industrial as longer-dated optionality
- Cyclical recovery in Wireless GaAs RF epi as handset inventory normalizes
Bull & bear
A recapitalized, IP-rich epitaxy leader with a credible, MACOM-anchored path into the fastest-growing corner of the AI buildout — Indium Phosphide for optical interconnect — after clearing its balance-sheet overhang.
- InP is a genuine AI-optics chokepoint: transceiver and co-packaged-optics volumes for AI clusters need InP epi, and IQE is one of a handful of qualified non-China merchant sources
- MACOM's GBP45m strategic investment + long-term supply agreements (plus the cited Nvidia supply-chain linkage) provide a demand anchor and validation IQE has never had before
- GBP81m raise repaid bank debt and redeemed convertibles, de-levering toward net cash — the survival/dilution-death-spiral risk that capped the equity is materially reduced
- Photonics grew +15% in a down year and is now the majority of revenue (~59%); the FY2026 guide of >20% growth with EBITDA recovery marks an inflection
- US/EU defence and supply-diversification give a structural, price-insensitive revenue floor independent of the handset cycle
A perennially unprofitable, sub-scale merchant supplier whose ~$583M valuation and ~336% one-year run price in an AI-optical turnaround that has not yet shown up in the P&L, while its legacy base shrinks and dilution has been relentless.
- FY2025 adjusted EBITDA was just GBP3.2M on GBP97.3M revenue and the reported pre-tax loss was GBP37.0M — the market is paying ~4x sales for a business with no proven profit engine
- Wireless (over 40% of revenue) fell 40% and faces both cyclical and structural handset-RF pressure; InP growth may not offset it near-term
- Optical customers (Coherent, Lumentum) and RF customers can and do vertically integrate epi, and Taiwanese/Japanese rivals (VPEC, IntelliEPI, Sumitomo) undercut merchant pricing
- The equity has diluted holders massively over time; MACOM's entry at 19.8p (a 58% discount to the pre-deal close) plus the convertibles cap upside and add overhang
- Guidance is a promise, not a print — half-yearly reporting and lumpy design-win-driven revenue make the >20%/EBITDA-recovery guide execution-risky; a miss would hit a stretched multiple hard
What it is worth
EV/Sales relative + qualitative catalyst framing (no meaningful earnings/FCF multiple applies given losses)
InP demand proves lumpy and Wireless stays weak; EBITDA recovery disappoints against a stretched multiple and convertible overhang, and the shares give back a large share of the ~336% run toward the low end of their wide 52-week range (4.66-72.90p).
FY2026 delivers the guided >20% revenue growth and a modest EBITDA recovery; the stock consolidates its gains as fundamentals grow into the ~4x sales multiple. A thin sell-side consensus (~3 analysts) carries a 12-month target of ~57p (range 50-60p), implying moderate upside from ~44p.
AI-optical InP demand and MACOM/Tower volumes drive multi-year >20% growth with EBITDA margins expanding toward double digits; a re-rated, profitable, strategically-anchored non-China epi leader supports a materially higher enterprise value than today's ~$583M.
At ~$583M market cap (net-cash post-raise, so EV ~= equity value) on ~$132M FY2025 revenue, IQE trades ~4.4x trailing sales and ~3.6x the FY2026 guided (>+20%) revenue. That is a growth/turnaround multiple for a business at ~3% EBITDA margin — the ~336% one-year re-rating discounts successful InP/AI-optical scaling and MACOM-anchored volume, not current fundamentals. Value hinges on whether Photonics/InP compounds >20% AND margins inflect; sell-side has already downgraded on valuation despite endorsing the MACOM/Nvidia narrative.
SWOT
Strengths
- Global #1 merchant GaAs epiwafer house and a leading independent epi supplier across InP/GaN/SiC — scarce, hard-to-replicate epitaxy know-how and IP
- Diversified end-markets (RF/wireless, photonics, power) and multi-region footprint (UK, US, Taiwan) valued by defence and supply-diversification customers
- Fresh, de-levered balance sheet after the GBP81m raise — bank debt repaid, runway to invest in InP capacity
- Strategic anchor customer/investor MACOM plus long-term InP supply agreement with Tower Semiconductor de-risk demand and substrate access
Weaknesses
- Chronically loss-making with razor-thin (~3%) adjusted EBITDA margin and negative free cash flow — no demonstrated through-cycle profitability at scale
- Heavy customer/end-market concentration in a cyclical smartphone-RF base that shrank 40% in FY2025
- Sub-scale versus vertically integrated giants and Asian epi rivals; limited pricing power as a merchant supplier
- Severe historical shareholder dilution (share count ballooned — equity raised repeatedly at depressed prices, most recently at a 58% discount to the pre-deal price)
Opportunities
- AI/data-centre optical interconnect is a genuine secular tailwind for InP epi as bandwidth demand explodes (800G/1.6T optics, co-packaged optics)
- MACOM/Nvidia-adjacent optical supply chain positioning could convert into multi-year volume
- US/EU defence and 'friend-shored', non-China III-V supply premium (a hedge against China-based substrate/epi capacity)
- GaN power/microLED and SiC as additional long-cycle growth vectors
Threats
- Vertical integration by large optical customers (Coherent, Lumentum) and RF customers who can in-source epi
- Low-cost, well-capitalized Taiwanese/Japanese epi competitors (VPEC, IntelliEPI, Sumitomo) and substrate incumbents compressing merchant margins
- AI-optical demand proving lumpy or slower-to-scale than the >20% guide implies — a re-rating risk given the ~336% run
- Substrate/material supply and price volatility (indium, gallium — subject to China export controls), and handset-cycle whiplash
Moats, dependencies & bottlenecks
Moats
Decades of MOCVD/MBE layer-stack expertise across III-V and wide-bandgap materials; hard to replicate quickly, but not unique — several qualified rivals exist.
Epiwafer specs are customer-qualified into device processes; re-qualifying a new supplier is slow and costly, giving incumbency stickiness — offset by customers dual-sourcing and in-sourcing.
UK/US footprint earns a supply-security premium with Western defence and diversification-seeking customers.
weak-to-moderate Leading merchant GaAs epi share, but small absolute scale versus integrated substrate/device giants limits cost and pricing power.
Dependencies
customer + strategic investor (~11.5%) + long-term supply agreement Now the anchor of both the demand and capital story; concentration cuts both ways if the relationship or MACOM's own demand softens.
Sumitomo Electric, Freiberger, JX Advanced Metals; Tower for InP) raw-material input InP/GaAs/SiC substrate availability and price are a hard constraint; the Tower long-term InP agreement addresses this specifically.
critical minerals Both subject to China export-control actions — a price/availability and geopolitical exposure.
end-market demand Wireless revenue tracks handset volumes and channel inventory — the source of the FY2025 40% drop.
end-market demand The entire growth thesis leans on InP optical demand scaling as guided; slippage undermines the re-rating.
Advantages
- Leading independent (merchant) epiwafer supplier with cross-material breadth (GaAs, InP, GaN, SiC)
- One of few qualified non-China InP epi sources — timely for AI-optics supply diversification
- MACOM strategic partnership + Tower InP supply deal + defence relationships
- De-levered, funded balance sheet after the GBP81m raise
- Multi-region (UK/US/Taiwan) manufacturing footprint
Weaknesses
- No demonstrated through-cycle profitability; ~3% EBITDA margin, negative FCF
- Small scale and merchant-model pricing pressure versus integrated peers
- High end-market cyclicality and customer concentration
- Long dilution history and continued convertible-note overhang
- Valuation stretched relative to current fundamentals after a ~336% run
Bottlenecks
- Path to sustained profitability — must convert InP volume into gross-margin leverage after years of losses
- InP epitaxy capacity and reactor throughput scaling to meet AI-optical demand without over-building
- Substrate and critical-mineral (In/Ga) supply security and cost
- Customer qualification cycle times for new InP layer stacks
- Reducing dependence on the cyclical wireless base while it declines
Top signals & trends
Top signals
Removes solvency/dilution-death-spiral risk and funds InP expansion; MACOM aligned as investor + customer. Priced at 19.8p (a 58% discount), which knocked the shares ~19% on the day.
The 2025 process (which had explored a full sale) ended in a strategic partnership instead; removes takeover-overhang uncertainty but also the takeout premium.
bullish (mix-shift) · Confirms the pivot to InP/optical + defence as the growth core.
bullish if delivered · The inflection the ~336% re-rating is pricing; execution-dependent.
Secures substrate/foundry access for InP epi feeding Tower's silicon-photonics platforms.
Sell-side flagging valuation getting ahead of fundamentals.
Trends
Primary demand driver for InP epi — the core bull case.
Secular TAM expansion for III-V/wide-bandgap epi.
Western/defence premium for non-China sources like IQE.
Structural pressure on the legacy GaAs wireless base.
Erodes the merchant-epi addressable market over time.
Raises input risk but also raises the value of secured Western supply.
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.
InP/GaAs substrate supplier
GaAs/InP/GaN substrate supplier
Multi-year InP epiwafer supply agreement for Tower's silicon-photonics platforms
GaAs substrate supplier (private, Germany)
InP substrate / high-purity metals supplier
Anchor customer + ~11.5% strategic investor; long-term supply agreements
RF PA maker consuming GaAs epi for handsets (wireless end-market)
RF front-end maker — GaAs/GaN epi demand
RF/optical device demand across handset and datacom
Optical component / laser maker — InP/GaAs epi customer for datacom optics
AI-optical supply-chain link cited via MACOM; drives end-demand for InP optical interconnect
Taiwan's leading merchant epi house; together with IQE historically a dominant share of the RF GaAs epi market — the most direct rival, also expanding in InP/optical.
US/Taiwan merchant MBE epi specialist (InP, GaAs, antimonide) — direct competitor in photonics/RF epi.
World's largest pure-play GaAs/GaN RF foundry; adjacent (device foundry) but competes for the same RF/photonics value chain and can consume epi in-house.
InP/GaAs/germanium substrate maker (China-based crystal growth); upstream supplier but also a materials competitor and beneficiary of the same InP-optical demand.
Substrate + GaN/GaAs epi capability at a vertically integrated Japanese giant — scale competitor across substrates and epi.
Taiwan epiwafer + optical chip maker focused on datacom/photonics — competitor in the optical epi niche IQE is targeting.
Vertically integrated optical/laser leader that grows its own InP/GaAs epi — both a large potential customer and an in-sourcing competitive threat.