MTSI
MACOM Technology
Summary
What they do:
Design and manufacture indium phosphide photodetectors, transimpedance amplifiers, laser drivers, and CW lasers — the analog optical components inside every 800G and 1.6T transceiver receiver chain — sitting at Layer 11 as a diversified compound semiconductor company with in-house InP fabrication and a data center segment growing 35–40% annually.
Why they matter:
Every optical receiver in an AI data center converts light back into electrical signals using an InP photodetector — MACOM is one of the few companies with in-house InP fab capacity, supplying the receiver-side analog components that complement Lumentum's transmitter-side EML lasers, with data center revenue at record levels.
Recent performance:
FQ1 2026 revenue $271.6M (+24.5% YoY), adjusted EPS $1.02. Data center revenue hit record $85.8M. Industrial & Defense hit record $117.7M. FQ2 guided $281M–$289M. FY2026 data center growth outlook raised from 20% to 35–40%. Stock at ~$264, market cap ~$19.6B.
Our Verdict
A diversified compound semiconductor company with genuine InP fabrication expertise and a data center segment growing 35–40%, benefiting from the 800G-to-1.6T transition — but at ~19x revenue with data center still only 30% of the mix, the AI premium outpaces current AI revenue contribution.
Structural trends
Structural
67
/ 100
Moat
5/10
InP fab + photodetector integration
AI Exp.AI Exposure
Embedded~30% AI
Play Type
EmergingAI Growth
~35-40%
Rel. Value
61
ATTRACTIVEPriceLIVE
$263.92
+0.11%
Live via Yahoo Finance · refreshes every 5 min
Market Cap
$19.8B
P/E Ratio
118.9
P/S Ratio
19.4x
52W High
$266.05
52W Low
$93.24
52W Chg
183.1%
Beta
1.48
MACOM Technology Solutions is a diversified analog and compound semiconductor company that designs and manufactures high-performance components for optical networking, industrial, and defense applications. The company's optical products — InP photodetectors, transimpedance amplifiers (TIAs), laser drivers, and continuous-wave (CW) lasers — are inside virtually every 800G and 1.6T optical transceiver module, handling the receiver-side signal chain that converts incoming light pulses back into electrical data.
The business operates across three end markets. Data Center (~30% of FQ1 2026 revenue, $85.8M, record quarter) supplies InP photodetectors, TIAs, and laser drivers to transceiver module makers — Coherent, Broadcom, Cisco, and AAOI — who assemble them into finished optical modules for hyperscalers. This segment is growing 35–40% annually, driven by the 800G→1.6T transition. Industrial & Defense (~43% of revenue, $117.7M, also record) supplies high-frequency analog components for radar, electronic warfare, 5G infrastructure, and industrial applications — a stable, higher-margin business with government contract visibility. Telecom (~27% of revenue) serves carrier optical networks and is the slowest-growing segment.
MACOM operates in-house InP fabrication — a rare capability that gives the company control over the compound semiconductor manufacturing process for photodetectors and photonic ICs. The company is expanding its photonics portfolio into 200G-per-lane photodetectors and new CW laser products for the 1.6T generation, while integrating its RTP (Research Triangle Park) fab to improve cycle times and long-term gross margins. FY2025 total revenue was $967.3M (+32.6% YoY), with the company on track to exceed $1.1B in FY2026.
Unlike Lumentum (transmitter-side, sole-source EML lasers), MACOM occupies the receiver side of the optical signal chain. Photodetector supply is less constrained than EML laser supply — there are more capable suppliers (MACOM, Coherent's internal photodetectors, Broadcom's germanium detectors) and the physics of photodetection is more mature than the physics of high-speed laser modulation. MACOM's differentiation is in the integration of photodetector, TIA, and driver functions on compound semiconductor platforms, and in its diversified revenue base that provides stability beyond the AI cycle.
Supply Chain Dependencies
Upstream Suppliers
The Catch
MACOM is priced as an AI optical play, but AI is only 30% of the business. The data center segment ($85.8M in FQ1) is growing 35–40% — impressive, but it needs to double as a share of revenue for the current ~19x revenue multiple to be fully justified by AI fundamentals. The diversification that provides downside protection (Industrial & Defense) also caps the AI narrative upside — MACOM will never trade at Lumentum-like multiples because it's not a pure-play. On the competitive front, MACOM's receiver-side position is less defensible than Lumentum's transmitter-side position: photodetector design is more mature, germanium alternatives are advancing (Broadcom), and Coherent has internal photodetector capability. The InP scarcity that gives MACOM pricing power today has a visible expiration — by 2028, capacity expansion and alternative technologies will increase supply. If Broadcom shifts transceiver volume to in-house photodetectors (credible by 2027–2028), MACOM faces a volume loss without a natural replacement. The I&D business catches the fall, but the AI premium evaporates.
If They Win
If MACOM successfully expands into CW lasers for silicon photonics architectures — if the company becomes the analog component platform for both InP and SiPho optical systems — MACOM transforms from a diversified analog company into the essential analog interface between photons and electrons in AI data centers. Data center grows to 50%+ of revenue by FY2028. Revenue reaches $1.8B. The CW laser business becomes the bridge product that connects traditional InP architectures to the emerging SiPho world, making MACOM relevant regardless of which optical technology wins. Industrial & Defense provides the earnings floor during any AI capex pauses. Gross margins reach 60%+ on product mix and RTP fab efficiency. Market cap reaches $30–35B. MACOM becomes the analog semiconductor analog to Semtech's digital signal chain — a less exciting but equally essential component supplier that every transceiver maker needs.
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Not financial advice. All scores generated via AI algorithms using public data.