COHR
Coherent Corp
Summary
What they do:
Coherent manufactures optical transceivers, EML lasers, indium phosphide components, and optical circuit switches that move data between AI chips via fiber — sitting between GPU clusters and the network as the company that converts electrical signals into light and back, supplying NVIDIA, hyperscalers, and DCI OEMs.
Why they matter:
Only vertically integrated optical transceiver supplier — makes laser chips on the world's first six-inch InP production lines, modulators, and packaged 800G/1.6T modules under one roof. NVIDIA strategic partner with $4B investment. Book-to-bill exceeded 4x in the December quarter; calendar 2026 is effectively booked out with calendar 2027 filling fast.
Recent performance:
Q2 FY2026 (Dec 2025) record revenue $1.69B, up 22% YoY pro forma. Non-GAAP EPS $1.29, up 35% YoY. Gross margin 39%, up 77 bps YoY. Data center revenue grew 36% YoY with 14% sequential acceleration. Guided Q3 revenue $1.7-1.84B. Stock ~$308, market cap ~$57.7B.
Our Verdict
Vertically integrated optical leader with ~40-50% AI exposure and accelerating datacom growth, trading at ~41x forward P/E — compelling relative to peers given six-inch InP cost advantage, 4x book-to-bill, and CPO/OCS optionality that consensus has not yet priced. Risk is execution on capacity ramp and the eventual narrowing of the supply-demand gap.
Structural trends
Structural
86
/ 100
Moat
8/10
Vertical integration + NVIDIA strategic partner
AI Exp.AI Exposure
High~45% AI
Play Type
EmergingAI Growth
~35-40% YoY
Rel. Value
69
ATTRACTIVEPriceLIVE
$313.42
+1.78%
Live via Yahoo Finance · refreshes every 5 min
Market Cap
$58.8B
P/E Ratio
304.3
P/S Ratio
9.3x
52W High
$320.00
52W Low
$50.81
52W Chg
516.8%
Beta
1.91
Coherent operates semiconductor and optical component fabs across Sherman, Texas (six-inch indium phosphide); Yarfala, Sweden (six-inch InP); San Jose, California (laser chip fab); Penang, Malaysia (transceiver assembly); Vietnam (components and expanding to transceiver assembly); and Northampton, UK (legacy optical components). The company employs 13,000+ people globally and recently exited 33 sites as part of portfolio optimization, including divesting its aerospace and defense business and a Munich materials processing division.
Their core product is the transceiver module — a small rectangular box containing a laser (EML or silicon photonics), modulator, receiver (photodiode), and DSP ASIC. A single 1.6T transceiver emits light that carries 1.6 terabits per second over a fiber strand 10 micrometers in diameter. NVIDIA's Blackwell GPUs require 12 of these transceivers per chip for full-bandwidth inter-GPU communication. Scale to a 1,000-GPU training cluster and the transceiver bill alone exceeds $12M.
The business is organized into two segments. Datacenter & Communications now accounts for over 70% of revenue ($1.21B of $1.69B in Q2 FY2026), growing 34% YoY. This includes 800G and 1.6T transceivers for AI data centers, optical circuit switches (OCS), ZR/ZR+ coherent modules for data center interconnect, and components sold to telecom OEMs. The Industrial segment ($478M, declining on divestitures) covers semiconductor capital equipment lasers, silicon carbide substrates, and specialty materials — with semi-cap orders picking up strongly in Q2.
Coherent's structural advantage is vertical integration anchored in indium phosphide. They are the world's only producer of six-inch InP wafers, which yield 4x more chips at less than half the cost versus three-inch. By the end of calendar 2026, roughly half of internal InP capacity will run on six-inch lines. This cost structure advantage underpins both transceiver margins and the massive CPO purchase order they secured from a "market-leading AI data center customer" for high-power CW lasers manufactured in Sherman, Texas.
Supply Chain Dependencies
Upstream Suppliers
The Catch
At 41x forward P/E, Coherent is priced for a multi-year optical supercycle that requires simultaneous execution across four vectors: ramping 1.6T transceiver volume, doubling InP capacity on an untested six-inch process at commercial scale, launching CPO into production, and scaling OCS from prototype to material revenue. Any one of these stalling — a yield problem on six-inch InP, a CPO qualification delay, an OCS market that develops slower than the $2B forecast — would challenge the growth acceleration narrative that justifies the premium. The deeper structural risk is that InP supply-demand eventually rebalances. Coherent's CEO says not in 2026 or 2027, but if competitors invest aggressively in their own InP capacity or if alternative photonic integration technologies (like Broadcom's electra-optics) gain traction, the pricing umbrella collapses and Coherent's margin expansion story reverses. The industrial segment at ~30% of revenue provides no AI growth offset — it is a drag on the narrative and a dilution to margins.
If They Win
Coherent becomes the optical backbone of AI infrastructure — every GPU cluster, every scale-up fabric, every data center interconnect link runs through Coherent photonics. The six-inch InP advantage compounds into an unassailable cost structure lead while CPO transforms them from a transceiver vendor into a platform provider shipping lasers, modules, and optical circuit switches as an integrated system. Scale-up optics alone — converting electrical intra-rack networks to optical — could double the addressable market. Gross margins expand to 45-50% on mix shift and manufacturing leverage. Revenue compounds at 25-30% for three years. Market cap re-rates from $58B toward $150B+ as the market prices Coherent as the optical analog of what TSMC is to silicon — the vertically integrated manufacturing partner that every AI hyperscaler needs.
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Not financial advice. All scores generated via AI algorithms using public data.