Soitec Bernin site visit: operational quality is stronger than current numbers suggest

Overview

This report is based on Morgan Stanley's site visit to Soitec's Bernin plant and discussions with management. The core conclusion is that Soitec's operational capability, manufacturing experience, and deployable capacity appear stronger than what the current financial figures reflect. The report argues that the company's long-standing expertise in SOI wafer manufacturing, combined with its ability to organize capacity amid accelerating Photonics SOI demand, helps improve the certainty of capturing growth opportunities tied to optical content in AI data centers.

Core views

Morgan Stanley remains constructive on Soitec. First, Soitec's manufacturing system is highly sophisticated; Bernin and Pasir Ris have plant space, cleanrooms, and installed capacity, and Bernin 4 still has room for adjustment, reducing the need for entirely new capacity builds. Second, Photonics demand continues to strengthen, customer requests are reportedly rising week by week, and management is improving visibility through minimum-volume commitments, demand outlooks, and prepayments. Third, the company has not prematurely turned the Photonics opportunity into fixed multiyear targets, which is viewed as prudent because AI data-center architectures are changing quickly and standardization remains limited. Fourth, the company is still pushing ahead with basic operating improvements in cost, seasonality, working capital, and capacity allocation, while pre-releasing available capacity through tactical moves such as tool transfers.

Analysis framework

The report combines site research, management interviews, operational observation, and valuation modeling. The focus is not only short-term revenue and margins, but also manufacturing organizational learning, capacity convertibility, customer demand visibility, the medium- to long-term growth path of Photonics SOI, and operating leverage on a fixed-cost base.

Methodology notes

• Valuation methodsMorgan Stanley ModelWare

  CY28e EPS multiple method

  The €200 target price comes from applying a 35x multiple to CY28e EPS and discounting that multiple back one year to roughly 32x; CY28e was chosen because the report believes the growth trajectory for Photonics SOI has higher visibility and could become a multi-year growth story.

• Data sourceRefinitiv Estimates

  Consensus estimates data

  The report notes that some consensus data are provided by Refinitiv Estimates, and financial metrics are based on the Morgan Stanley ModelWare framework unless otherwise stated.

• Research methodSite visit and management discussion

  Bernin site visit and lunch discussion with management

  The analysts assessed manufacturing operations, Photonics demand, customer commitments, and capacity arrangements through a visit to the Bernin facility and a lunch discussion with management including the CEO, CFO, CTO, and COO.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Soitec SA (SOIT.PA)

  Research subject; a European semiconductor company whose core opportunities come from SOI wafers, Photonics SOI, and growth in optical content tied to AI data centers.

  Strengths

  Long-standing SOI manufacturing experience, capacity base in Bernin and Pasir Ris, flexibility in cleanrooms and plant space, organizational learning from in-house equipment maintenance, accelerating customer demand in Photonics, and potential operating leverage on a fixed-cost base.

  Weaknesses

  Recent revenue and margins remain weak, with 03/26e EPS still negative; there have been past missteps on the customer side and in forecast execution; RF-SOI still needs inventory destocking and a recovery in expectations.

  Comparison

  Compared with the market's cautious view based on recent operating numbers, Morgan Stanley believes on-site operating quality and the medium-term Photonics opportunity are stronger; the rating history shows Soitec returned to Overweight on 2026-03-26.

  Risks

  RF-SOI again coming in below expectations, inconsistent KPI communication, insufficient growth contribution from Photonics and POI, and rapid changes in AI data-center architecture plus limited standardization that could weaken visibility.

Key data

• Stock ratingOverweightMorgan Stanley's current rating on Soitec SA.
• Sector viewIn-LineThe sector coverage view is In-Line.
• Target price€200.00Based on a 35x multiple of CY28e EPS and discounted back one year.
• Closing price€129.45Closing price on June 22, 2026.
• Implied upsideabout 54.5%Calculated from the €200.00 target price and €129.45 closing price.
• Market capitalization€4,369mnCurrent market capitalization disclosed in the report table.
• FY2026 revenue forecast€581mn03/26e Sales / Revenue.
• FY2028 revenue forecast€767mn03/28e Sales / Revenue, indicating expected revenue recovery.
• FY2028 EBITDA forecast€240mn03/28e EBITDA, reflecting potential operating leverage.
• 52-week range€200.50-22.6252-week share-price range disclosed by the report.

Impact & implications

The report's view on the investment implication is positive: the market's skepticism about Soitec's operating capabilities may be too harsh, and the site visit strengthened the analyst's confidence in the company's ability to execute on the Photonics SOI opportunity. If the optical content in AI accelerators continues to increase, Soitec could gain a more durable opportunity beyond the current demand wave. However, management's caution in not providing aggressive multiyear targets also means investors still need to monitor evidence on order commitments, customer standardization, and RF-SOI inventory destocking.

Risks

• RF-SOI expectations continuing to fall short, especially if there is insufficient evidence of inventory destocking.
• Growth contributions from Photonics and POI coming in below expectations.
• Rapid changes in AI data-center architecture and limited standardization making medium-term demand forecasts uncertain.
• Inconsistent management KPI communication affecting market trust.
• Past customer-side judgment and forecasting mistakes weighing on investor confidence in execution.
• While a fixed-cost base can provide upside operating leverage, it can also amplify profit pressure if demand is weaker than expected.

What to watch

• Whether Photonics customers provide minimum purchase commitments, medium-term demand outlooks, and prepayments.
• Whether there is further evidence of RF-SOI channel inventory declines.
• Capacity allocation, tool transfers, and qualification progress at Bernin and Pasir Ris.
• Whether Photonics SOI accelerates and translates into revenue and margin improvement.
• Whether the company improves seasonality, working capital, and manufacturing efficiency without expanding cost risk.
• Whether the increase in optical content in AI accelerators continues and expands Soitec's addressable market.