Carl Zeiss AG
German foundation-owned optics giant, sole maker of ASML's EUV lithography mirrors.
Zeiss's semiconductor optics arm is locked in as ASML's only mirror supplier, while its medical device arm loses ground in China lens pricing and awaits new leadership to steady the business.
Carl Zeiss AG makes precision optical systems, with its biggest profit engine being specialized mirrors that ASML uses in machines that etch computer chips. This business is extremely hard to copy because it requires 180 years of accumulated knowledge, the ability to manufacture at atomic scales, and ASML's deep financial ties to Zeiss, making it nearly impossible for rivals like China's optics makers to replicate. However, Zeiss's future depends almost entirely on one customer (ASML) and whether the world continues buying the expensive chip-making equipment that uses these mirrors. If chipmakers suddenly need less advanced equipment or ASML's growth plans slow down, Zeiss loses its main moneymaker.
ASML confirms or cuts its 2027-28 EUV capacity expansion plans in future earnings calls. Would directly signal whether Zeiss's SMT profit engine keeps growing or slows.
Bronwyn Brophy O'Connor's Meditec CEO start date is finalized and ProfitUp job cuts begin rolling out. Indicates whether Meditec's restructuring and cost program are proceeding on schedule.
- ZEISS Group revenue €11.896B FY2024/25, up 9%
- SMT segment sales €2.47B in H1, up 22% YoY
- Meditec cutting up to 1,000 jobs, targeting €200M savings
- SMT segment concentration on single customer ASML; any EUV roadmap slowdown hits Zeiss's largest profit driver.
- Meditec guidance suspended since 22 January 2026 with unresolved FY2025/26 outlook.
- Execution risk on cutting up to 1,000 Meditec jobs and delivering €200M ProfitUp savings by FY2028/29.
- China volume-based procurement pricing pressure hurting Meditec's IOL and ophthalmology revenue.
- Leadership disruption after CEO termination for compliance violation, effective 1 January 2026.
| Rival | Direction | Evidence |
|---|---|---|
| ASML | contesting | SMT profit engine entirely tied to ASML's single-customer cycle and 2027-28 capacity plans as of Jul 2026 |
| Nikon | gaining on | Nikon sued ASML and Zeiss over immersion lithography patents in 2017 and lost the technical race |
- Is Carl Zeiss AG profitable in 2026?
- Yes. ZEISS Group posted €11.896 billion revenue in FY2024/25 (ended 30 Sept 2025), up 9% year over year, with EBIT of €1.552 billion, a 13% margin. H1 FY2025/26 revenue reached €5.841 billion with EBIT of €955 million, though management called segment performance 'highly uneven.'
- Could AI replace Carl Zeiss's business?
- No. Zeiss's core is atomic-tolerance precision optics manufacturing, including EUV lithography mirrors for ASML, plus regulated medical devices, neither of which AI can produce. Zeiss instead bolts AI onto products, like the ZEN core software suite launched March 2025 and Microscopy Copilot, rather than facing AI disruption.
- Is Carl Zeiss doing layoffs in 2026?
- Yes, selectively. Carl Zeiss Meditec announced on 14 May 2026 plans to cut up to 1,000 jobs globally over three years under its 'ProfitUp' program targeting €200 million in annual earnings gains by FY2028/29. Separately, Sports Optics is ending analog manufacturing at Wetzlar by end 2026, affecting about 70 roles.
- Who owns Carl Zeiss AG?
- Carl Zeiss AG is 100% owned by the Carl Zeiss Foundation (Carl-Zeiss-Stiftung), a German science foundation that also owns glassmaker SCHOTT AG. The parent is not publicly traded; only its subsidiary Carl Zeiss Meditec AG trades on Deutsche Börse under ticker AFX, with a market cap around €2.39 billion as of 24 July 2026.
- Is Zeiss's biggest rival ASML or Nikon?
- Neither is a true rival today. ASML is Zeiss's largest customer and 2017 equity partner (a ~€1 billion investment into Carl Zeiss SMT), holding about 83% of global lithography-machine sales. Nikon tried to compete in immersion lithography optics, sued ASML and Zeiss over patents in 2017, and lost that technical race.
- Is joining Carl Zeiss Meditec risky right now?
- There is real near-term turbulence: Meditec suspended its FY2025/26 guidance on 22 January 2026, its CEO was terminated for a compliance violation effective 1 January 2026, and up to 1,000 jobs are being cut through FY2028/29. A new CEO, Bronwyn Brophy O'Connor, was named 22 May 2026 to lead the turnaround.
- 2026-07-24Zeiss announces SMT expansion: second Wetzlar site with ~500 jobs, 25,000+ m2 added at Oberkochen
- 2026-06-09H1 FY2025/26 results: Group revenue €5.841B, up 1%, EBIT €955M, segment performance 'highly uneven'
- 2026-05-29Sports Optics to end analog optics manufacturing at Wetzlar by end 2026, ~70 roles affected
- 2026-05-22Bronwyn Brophy O'Connor named incoming CEO of Carl Zeiss Meditec AG
- 2026-05-14Meditec announces plan to cut up to 1,000 jobs over three years under ProfitUp program
- 2026-01-22Carl Zeiss Meditec suspends FY2025/26 financial guidance
- 2026-01-01Andreas Pecher becomes interim Meditec CEO after Maximilian Foerst's contract terminated
- 2025-12-17ZEISS Group reports FY2024/25 revenue of €11.896B, up 9%, EBIT €1.552B
- 2025-04-30ZEISS launches AI-powered Research Data Platform for ophthalmic research at ARVO
- 2025-03-31ZEN core universal SEM software suite launched for all ZEISS electron microscopes
- Zeiss (company) (2026-07-21)
- gurufocus.com (2026-07-24)
- Nikon sues ASML, Zeiss over immersion lithography (2026-07-15)
- Change to the Executive Board of Carl Zeiss AG for the Medical Technology segment (2026-05-22)
- ZEISS concludes fiscal year 2024/25 with solid growth (2025-12-17)
- Solid Performance, Clear Future Course (2026-06-09)
- Zeiss ponders job cuts in subdued outlook (2026-04-08)
- Annual Report Carl Zeiss Meditec AG (2025-12-11)
- ZEISS Q1 FY2025/26 analyst presentation (2026-02-12)
- Carl Zeiss Meditec to cut up to 1,000 jobs amid dipping revenues (2026-05-14)
- Zeiss's Restructuring: A Pragmatic Shift in Optics Manufacturing (2026-05-29)
- Chip Lithography: Zeiss Expands German Production (2026-07-24)