Lumentum Conference Call Summary Company Overview - Lumentum is primarily an infrastructure provider focused on data centers, offering semiconductor components and systems to hyperscalers and data center operators [5][6][10] Core Business Segments - **Lasers and Transceivers**: Lumentum specializes in two main types of lasers used in data centers: Continuous Wave (CW) lasers and Externally Modulated Lasers (EMLs). The company predominantly manufactures EMLs, holding approximately 50% to 60% of the global EML market [9][10] - **Emerging Technologies**: The company is also exploring ultra-high power lasers for scale-up and scale-out applications within data centers [10] Market Dynamics - **Demand vs. Supply**: Lumentum is currently facing a supply-demand imbalance, estimating to be 30% behind demand by mid-2026 despite plans to increase capacity by 40% [18][19] - **Capacity Expansion**: The company is virtualizing its indium phosphide fabs to optimize production and meet increasing demand [20][21] Product Development and Trends - **200 Gig EMLs**: The company anticipates that 200 gig EMLs will constitute 10% of volumes in Q1 2026, increasing to 25% by Q4 2026, which will positively impact revenue and margins [22][25] - **Optical Circuit Switches (OCS)**: Lumentum sees significant growth potential in the OCS market, with expectations to grow from $10 million in Q1 to $100 million by Q4 2026 [38][40] Competitive Landscape - **Vertical Integration Risks**: While competitors are exploring vertical integration, Lumentum has opted to focus on components rather than integrated modules, which may mitigate risks associated with competition [16][17] - **Co-Packaged Optics**: The company views co-packaged optics as a growth opportunity, with expectations for material revenue contributions starting in the latter half of 2026 [46][50] Future Outlook - **Growth Drivers**: Lumentum anticipates strong contributions from OCS, scale-out, and scale-up optics in 2026, which are not yet reflected in current financial projections [64][65] - **Market Position**: The company believes its core business, particularly in EMLs and emerging technologies, positions it well for future growth, with optimism about the optics market resurgence [63][66] Key Takeaways - Lumentum is strategically positioned in the data center infrastructure market, focusing on lasers and transceivers, with a strong emphasis on EMLs - The company is addressing supply chain challenges while expanding capacity to meet growing demand - Future growth is expected from new product developments and market opportunities, particularly in OCS and co-packaged optics, indicating a positive outlook for the company in the coming years [64][65]

Q3 FY25 Performance Highlights - Q3 revenue and EPS exceeded guidance, driven by strong cloud demand[8] - Revenue increased by 8% QoQ and 16% YoY, primarily due to hyperscale cloud growth[8] - The company is on track to more than double EML shipments by the end of CY25, relative to the June 2024 baseline[8] Q3 FY25 Financial Results (Non-GAAP) - Revenue was $4252 million[10] - Gross margin reached 352%[10] - Operating income was $461 million, representing 108% of revenue[10] - Diluted EPS stood at $057[10] Segment Performance - Cloud & Networking revenue was $3652 million[11] - Industrial Tech revenue was $600 million[11] - Cloud & Networking segment profit margin was 200%[11] - Industrial Tech segment profit margin was 43%[11] Q4 FY25 Guidance (Non-GAAP) - Revenue is projected to be between $440 million and $470 million[13] - Operating margin is expected to be in the range of 130% to 140%[13] - Diluted EPS is forecasted to be between $070 and $080[13]