Soitec shares climbed 12.72% after the French semiconductor-materials maker raised its Q2’27 revenue growth guidance to around 50% year-on-year at constant currency and scope, from more than 30% previously. The second fiscal quarter closes at the end of September. Soitec attributed the stronger outlook to accelerating Photonics-SOI demand, improved visibility into customers’ near-term requirements and its ability to adjust capacity as artificial-intelligence infrastructure expands. Photonics-SOI revenue is expected to reach around three times Q2’26’s approximately $25 million, around 2.3 times H1’26’s approximately $50 million, and between 2.5 and three times FY26’s slightly more than $100 million. The company continues to sign multi-year Capacity Reservation Agreements and expects agreements with eight of approximately 10 major Photonics-SOI customers in the coming weeks, while expectations for the rest of the business remain broadly unchanged.