1) Fiscal 26 Performance Overview
- Coherent achieved record revenue of $7.12 billion, a 28% increase YoY on a pro forma basis.
- Q4 revenue reached $2.05 billion, up 14% sequentially and 42% YoY.
- Non-GAAP EPS for Q4 was $1.74, reflecting a 74% increase YoY, while full-year EPS grew 59%.
- Gross margin improved to 40.2% in Q4, a 215 basis points increase YoY.

2) Growth Drivers and Segment Performance
- The data center and communications segment drove growth, accounting for 79% of total revenue in Q4, with a 59% YoY increase.
- Data center revenue grew 41% for the full year, with Q4 showing a 66% YoY increase.
- New revenue streams expected include Optical Circuit Switching (OCS), co-packaged optics (CPO), and multi-rail systems.
- Strong demand across multiple customers and product categories, particularly in 800G and 1.6T transceivers.

3) Operational and Capacity Expansion
- Coherent is doubling its internal Indium Phosphide output capacity year-over-year, with plans to exceed this again by the end of calendar 2027.
- The transition to 6-inch Indium Phosphide production is ongoing, with yields exceeding those of 3-inch production.
- Significant investments in capacity expansion and advanced tooling are expected to yield strong financial returns.

4) Challenges and Market Dynamics
- The company is facing no signs of demand attenuation, with order coverage extending into 2028 and long-term agreements (LTAs) in place through the end of the decade.
- Concerns regarding potential import restrictions for optical transceivers could benefit Coherent as a major US supplier, but the situation remains speculative.
- The company continues to monitor customer urgency and demand dynamics amid market discussions.

5) Guidance and Future Outlook
- For Q1 FY 27, Coherent expects revenue between $2.2 billion and $2.4 billion, with gross margin guidance of 39.5% to 41.5%.
- Non-GAAP EPS is projected between $1.85 and $2.05.
- The company anticipates continued growth in fiscal 27, driven by strong customer demand and multiple new growth platforms ramping up.

Bottom line: Coherent is well-positioned for robust growth in fiscal 27, supported by strong demand in the data center and communications segments, significant capacity expansions, and a solid financial outlook. The company's strategic investments and operational efficiencies are expected to enhance profitability, making it an attractive proposition for shareholders.