Soitec stock gains after guidance upgrade on strong photonics demand
Published on 09/04/2026 at 21:39 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Soitec (ISIN FR0013227113) stock is trading higher after the French semiconductor-materials group lifted its revenue growth outlook for the second quarter of fiscal 2027 to around 50 percent year on year, up from a previous forecast of 30 percent, reflecting surging demand for its photonics-SOI substrates used in AI data centers as reported on September 4, 2026.
Guidance raised on photonics-SOI momentum
According to a report in The Business Times dated September 4, 2026, Soitec has raised its second quarter fiscal 2027 revenue growth outlook to 50 percent year on year, compared with its earlier guidance of 30 percent.
Further detail from MoneyDJ on September 4, 2026 indicates that Soitec now expects revenue from its photonics-SOI products in the second quarter, which ends September 30, 2026, to reach about three times the 25.0 million USD recorded in the same quarter a year earlier, implying around 75.0 million USD in sales for that segment.
The same MoneyDJ report notes that for the 2027 fiscal year, which ends March 31, 2027, Soitec forecasts photonics-SOI revenue between 250.0 million USD and 300.0 million USD, more than doubling from a level slightly above 100.0 million USD projected for fiscal 2026, underscoring how strongly AI data center demand is reshaping the company’s revenue mix.
In addition, an article by Investir on September 4, 2026 explains that the guidance upgrade follows an influx of orders in photonics, a technology that brings fiber optics closer to graphics processors powering AI workloads in data centers, which increases the value of Soitec’s specialized wafers.
Stock reaction and analyst view
The guidance change has triggered a marked stock reaction. MoneyDJ reports that Soitec shares jumped more than 10 percent on September 3, 2026, closing at 123.50 EUR and topping the STOXX 600 index, with the stock having risen nearly fourfold year to date as of that date.
On September 4, 2026, market data compiled by Ideal-Investisseur shows Soitec trading around 128.55 EUR, up about 4.09 percent on the day and leading the SBF 120 index, which was slightly down during the session.
A separate price snapshot from Investing.com dated September 4, 2026 shows Soitec closing at 128.30 EUR, with a gain of 3.89 percent on the day, placing the stock among the top performers on the SBF 120.
The year to date performance provides additional context: MoneyDJ notes that Soitec’s share price has climbed close to four times its level at the start of 2026, which implies an increase of almost 300 percent over that period, highlighting how strongly the market is pricing in the company’s role in the AI infrastructure supply chain.
Analysts have responded by revising their models. According to Boursorama on September 4, 2026, Kepler Cheuvreux has maintained a buy recommendation on Soitec while raising its price target from 150 EUR to 180 EUR, and HSBC has kept a hold rating but increased its target from 137 EUR to 149 EUR.
In addition, data from Simply Wall St on September 4, 2026 indicates that one widely followed valuation narrative places Soitec’s fair value at 138.89 EUR per share, above the 123.50 EUR closing level recorded prior to the latest advance, suggesting that investors still see further upside relative to that fair value estimate.
Ownership changes also reflect growing institutional interest. A filing summarized by Bourse Direct on September 4, 2026 reports that JP Morgan Chase has increased its holding to 1,840,409 Soitec shares, representing 5.14 percent of the capital and 4.11 percent of voting rights as of August 31, 2026, while UBS Group has raised its stake to 1,815,087 shares, equal to 5.07 percent of the capital and 4.06 percent of voting rights as of September 1, 2026.
Photonics-SOI as an AI infrastructure lever
For investors, the core driver behind Soitec’s guidance revision is the accelerating demand for silicon photonics wafers that enable high-bandwidth, low-latency connections inside AI data centers.
MoneyDJ explains that Soitec’s photonics-SOI products integrate photonic components onto silicon-on-insulator substrates, which are widely used in data centers to route optical signals closer to high performance processors, thereby supporting the computational needs of large AI models.
The revenue trajectory in this niche illustrates its strategic importance. With second quarter fiscal 2027 photonics-SOI sales expected to reach roughly 75.0 million USD, three times the 25.0 million USD recorded in the same quarter of the prior year, Soitec is seeing a year-on-year growth rate of about 200 percent in this segment alone.
Looking at the full fiscal year guidance, the company’s projection of 250.0 million USD to 300.0 million USD in photonics-SOI revenue for fiscal 2027 compared with just above 100.0 million USD for fiscal 2026 implies growth of more than 150 percent at the midpoint, underscoring the steep ramp associated with AI-related capital expenditure cycles.
Commentary cited by MoneyDJ from Soitec’s United States operations president and chief strategy officer Steve Babureck earlier in 2026 describes the AI capital expenditure cycle as unprecedented in semiconductor history, which aligns with the triple-digit growth figures now visible in Soitec’s photonics-SOI guidance.
An analysis by Semicone dated September 4, 2026 notes that Soitec’s stock price has surged nearly fourfold year to date, positioning the company as a key node in the AI infrastructure supply chain thanks to its ability to lock in capacity for advanced wafers that are critical for high bandwidth optical interconnects.
This dynamic means that Soitec’s growth is tied not only to conventional smartphone and automotive chip markets but increasingly to hyperscale cloud operators and enterprises building out AI capabilities, which can influence both the volatility and the long term potential of the stock.
Representative product: photonics-SOI wafers for data centers
One representative product illustrating Soitec’s current growth profile is its photonics-SOI wafer family, designed to support silicon photonics devices used in cloud and data center infrastructure.
These wafers provide a high quality silicon-on-insulator platform on which optical waveguides, modulators and detectors can be integrated, enabling transceivers and interconnects that carry optical signals between racks and within servers at very high data rates.
As highlighted by MoneyDJ and Semicone on September 4, 2026, demand for such photonics-SOI wafers is being pulled by AI workloads that require dense, low latency connectivity between graphics processing units, so revenue from this product class is now forecast to triple year on year in the second quarter of fiscal 2027 and more than double between the 2026 and 2027 fiscal years.
Soitec stock price and trading venue
Soitec stock is listed on Euronext Paris under the ticker SOI and is a constituent of the SBF 120 index, with trading also visible to DACH-region investors through the European context even though the primary listing is in France.
As of the close on September 4, 2026, Soitec shares traded around 128.30 EUR on Euronext Paris, up 3.89 percent on the day according to Investing.com, while Ideal-Investisseur recorded an intraday level of 128.55 EUR and a 4.09 percent gain, indicating that the stock remains close to the upper band of its recent trading range after nearly quadrupling year to date.
Soitec stock key data
- Company: Soitec SA
- ISIN: FR0013227113
- Ticker: SOI
- Trading venue: Euronext Paris
- Price (as of September 4, 2026): 128.30 EUR
- Market capitalization: Not specified in available same day sources
- Sector / Industry: Semiconductors / Materials
- Index membership: SBF 120
