X-FAB soars 76% after viral X post pitches chipmaker’s growth exposure

X-Fab Silicon Foundries Europese Vennootschap

27/05/2026 12:17

** X-FAB XFAB.PA up as much as 76% to a record high after a widely circulated post on social media platform X pitches the European chipmaker as an undervalued stock exposed to high-growth areas 
** The post from the handle Sereniti highlights X-FAB as strongly positioned in future growth markets such as silicon carbide (SiC) and photonics businesses
** It points to its potential indirect ties to Nvidia through partners and evaluation-stage work in silicon photonics, adding X-FAB could benefit from further subsidies under a new round of the European Chips Act     
** The stock is up more than 151% year-to-date

 (Reporting by Ozan Ergenay and Jakob Van Calster)
 ((ozan.ergenay@thomsonreuters.com))