Soitec shares skyrocket 414.5% in 2026, becoming the best-performing constituent of the STOXX Europe 600
Soitec has emerged as the top performer in the European equity market this year, with shares rising 414.5% since the start of 2026. The French company, a specialist in semiconductor materials, has benefited significantly from the global artificial intelligence infrastructure boom. While annual revenue fell 34% due to excess inventory, investors remain optimistic as the company's photonics business exceeds $100 million for the first time. This rally is part of a broader bull market across Europe, where the STOXX Europe 600 reached a new record high of 657 points. The market growth is being driven by the infrastructure behind the AI boom, such as semiconductor wafers, chip-testing equipment, and advanced substrates. Geopolitical factors, such as reports of a new agreement between Washington and Tehran to reopen the Strait of Hormuz, have also contributed to easing inflation fears. Additionally, preliminary estimates from Eurostat show the eurozone economy expanded by 0.4% in the second quarter, better than expected by economists. Corporate earnings for the period have generally exceeded expectations, with industrial winners like ArcelorMittal and Saipem also showing strong performance.