US stock signal leader Serenity announces first position in European stock XFAB, opening with a gain of approximately 10%

According to Odaily, the US stock trading influencer Serenity posted on the X platform that they have completed building a position in the European stock XFAB at a market capitalization of $1.28 billion. This is the first time Serenity has mentioned this stock on X. After opening today on Euronext Paris in Paris, France (market opening at 15:00 UTC+8), XFAB's price surged by 10%, rising from €8.88 to €9.88.

X-FAB Silicon Foundries SE (XFAB) is a specialty wafer foundry focusing on analog and mixed-signal semiconductor technologies. Serenity stated that the EU "CHIPS act 2" will serve as a catalyst for European photonic companies, and XFAB is very likely to be included and receive government funding.

At the same time, XFAB is the only high-volume silicon carbide wafer foundry in the United States and is also an important MEMS (Micro-Electro-Mechanical Systems) foundry. Currently, XFAB's price-to-book ratio is about 1.29x. Serenity believes its expected price-to-earnings ratio will reach 6.5–8.5 by 2028.

Reportedly, Serenity is currently the most-followed and influential AI/semiconductor stock analyst on the X platform. They joined X in July 2025 and currently have over 400,000 followers and more than 37,000 subscribers. Over the past year, many of the small-cap stocks recommended by Serenity have risen by more than 100%, and so far this year, their personal return rate exceeds 3840%.

For more of Serenity's investment strategies and background, you can read "US Stock Trading King Serenity: Leading Institutions Build Positions at Lows, Annual Return 3840%".