COHR - Coherent Corp.

Coherent Corp. manufactures compound semiconductor lasers, optical transceivers, and photonic components sold primarily to hyperscale data center operators and telecom network equipment makers under B2B volume supply agreements. Its core products include indium phosphide (InP) and silicon photonics-based 400G and 800G optical transceivers used in AI and cloud data center interconnects, as well as vertical-cavity surface-emitting lasers (VCSELs) for 3D sensing and industrial applications. Coherent generates approximately $4.5B in annual revenue, with significant exposure to North American and Asian hyperscaler customers, following its 2022 merger with II-VI Incorporated. The company sells through direct enterprise contracts with major cloud providers and telecom OEMs such as Cisco, Nokia, and Huawei.

Past Year Trends

• Coherent's Datacenter and Communications segment revenue reached $1.2 billion in Q2 FY2026 (ended December 2025), up 33.6% year-over-year, fueled by 800G transceiver shipments to hyperscaler AI data centers, with the data center book-to-bill ratio exceeding 4x and customer bookings extending into calendar 2027. (Bullish)
• Coherent divested its Aerospace and Defense business to Advent International for $400 million in August 2025, using proceeds to reduce debt and refocus the company entirely on photonics and networking markets, which management stated would be immediately accretive to EPS. (Bullish)
• Total revenue grew from approximately $1.47 billion in Q3 FY2025 to $1.81 billion in Q3 FY2026 (ended March 2026), a 21% year-over-year increase, with GAAP gross margin expanding from roughly 33% to 37.7% over the same period driven by mix shift toward higher-margin datacom products. (Bullish)

Next Year Trends

• The ramp of 1.6T transceivers — led by EML and silicon photonics platforms with 200G VCSEL-based 1.6T modules expected in H2 calendar 2026 — represents Coherent's next major product cycle, with management guiding double-digit sequential datacenter revenue growth and multiple hyperscalers locking in calendar 2027 delivery slots. (Bullish)
• Coherent's vertical integration of EML lasers and silicon photonics components — rather than sourcing externally — is the primary mechanism driving gross margin expansion beyond the current 37.7%, with the company targeting further improvement as 1.6T mix increases and manufacturing yields mature through FY2027. (Bullish)
• Hyperscaler capex concentration is a structural headwind: the majority of Coherent's data center revenue is tied to a small number of cloud customers whose AI infrastructure spending drives order flow, and any moderation or re-prioritization by these customers — as occurred in prior cycles — could rapidly collapse the current 4x-plus book-to-bill. (Bearish)

Red Flags

No severe red flags identified as of August 2025.