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Analyst
Ezra Weener
Period: Reporting periods mapped to calendar 2025 Q1 – 2025 Q4 (4 quarters; questions recorded in 3).
- Questions
- 8on tracked calls
- Challenge rate
- 0%none of 8 questionsLimited sample
- Companies
- 2questioned at least once
- Reporting periods
- 3with questions
These figures cover the whole profile: every tracked question, all reporting periods.
How to read these numbers
Challenge rate is the share of questions that pushed back, pressed for specifics or questioned management’s assumptions. It describes how questions were asked on the calls tracked here; it does not measure whether any view turned out to be right.
Rounding. Rates are rounded to whole percentages, so a small share can show as 0% even when some questions were challenging. The count beside each rate is exact; “none of N questions” means no question was challenging.
No questions recorded. “—” means there is nothing to calculate: no questions were recorded for that period on the calls tracked here. It does not mean there was no activity.
Fewer than 3 questions. A company-level rate is withheld when fewer than 3 questions were recorded for that company; the questions are still counted everywhere else.
Small samples. Profiles with fewer than 10 questions are marked Limited sample.
Reporting periods. Questions are grouped by the calendar quarter each company’s fiscal reporting period maps to, not by the date of the call. Periods without a calendar mapping are listed separately under their fiscal label.
Questions asked
Grouped by company, most questions first. Open a company to read its questions, newest reporting period first.
Showing 8 of 8 questions from 2 companies
COHRCoherent, Inc.5 questions · 3 reporting periods · 0 of 5 challenging
Calendar 2025 Q4
how should we expect that to layer in? And longer term, do you expect the heavy majority of your capacity to be six-inch
Show response
Jim confirmed all new capacity additions are essentially 6-inch. By end of calendar year, half of capacity will be 6-inch. Customers selecting Coherent partly because of 6-inch cost advantage and US manufacturing.
pricing is coming up for your externally sourced components. But at the same time, you guys are signing LTAs. Talk a little bit about pricing
Show response
Jim confirmed higher external EML costs offset by internal 6-inch InP ramp making internal supply more valuable. Net positive for gross margin. Sherri highlighted 470bp gross margin improvement since FY2024.
Calendar 2025 Q2
Can you talk a little bit more about what you're seeing, a, from a supply-demand perspective on that as your capacity ramps
Show response
Jim reiterated 800G growing this and next calendar year with 1.6T ramping on top. Internal/external EML mix to continue with 6-inch InP as key capacity enabler.
Can you talk a little bit about what that is from a performance benefit and what that means for cost for your customer?
Show response
Jim explained digital liquid crystal technology from telecom heritage provides much higher reliability than MEMS, meeting customer specs with strong engagement across multiple customers.
Calendar 2025 Q1
can you talk a little bit about the traction of your own EML and what that means in terms of your supply, demand and capacity growth
Show response
Jim confirmed strong internal EML traction with majority of transceivers shipping on own EMLs, 6-inch InP line starting next quarter for capacity and cost structure step-function.
LITELumentum Holdings Inc.3 questions · 2 reporting periods · 0 of 3 challenging
Calendar 2025 Q2
Can you talk a little bit about what you're seeing timing-wise between the 2 of those in that transition
Show response
Michael confirmed 100G EML (for 800G transceivers) continuing to climb, 200G EML (for 1.6T) just starting as additive business. Wupen noted 6-9 months visibility, supply-constrained, shipping everything produced.
Calendar 2025 Q1
Can you talk about what you're seeing there from an EML versus CW laser perspective and the plan for insourcing versus externally sourcing
Show response
Michael confirmed all current transceivers use externally sourced CW lasers with silicon photonics. Internal laser incorporation expected early CY2026. EMLs remain priority for external chip sales.
three customers all using CW lasers, just kind of wondering what that means for the industry in terms of what you're seeing from people choosing CW or EML
Show response
Michael explained EMLs are prioritized for differentiation and pricing. Starting CW production to participate in that market, first externally then insourcing. CW will be the primary insourced laser type.
Challenge rate by company
Every company this analyst questioned, most questions first. A company-level rate is shown from 3 questions; below that it is withheld.
| Company | Questions | Challenge rate |
|---|---|---|
| COHR Coherent, Inc. | 5 | 0%none of 5 questions |
| LITE Lumentum Holdings Inc. | 3 | 0%none of 3 questions |
Activity by reporting period
Questions recorded for each calendar quarter that companies’ reporting periods map to (not the call date), with the challenge rate for that period. Periods inside the range with no questions are shown as “No questions recorded”.
| Calendar period | Questions | Challenge rate | Companies |
|---|---|---|---|
| 2025 Q1 | 3 | 0%none of 3 questions | 2 |
| 2025 Q2 | 3 | 0%none of 3 questions | 2 |
| 2025 Q3 | No questions recorded | — | — |
| 2025 Q4 | 2 | 0%none of 2 questions | 1 |
- 2025 Q13 questions · challenge rate 0% (none of 3 questions) · 2 companies
- 2025 Q23 questions · challenge rate 0% (none of 3 questions) · 2 companies
- 2025 Q3No questions recorded
- 2025 Q42 questions · challenge rate 0% (none of 2 questions) · 1 company
Topics
Topics tagged on this analyst’s questions.
- Innovation & R&D5
- Supply Chain4
- Cloud & AI4
- Capex Investment2
- Competitive Dynamics2
- Pricing1
- Margin1